baber/WOPTO huggingface dataset:
Patent GB-713746-A (GB)
Title: Manufacture of ammonium thiosulphate
IPC: C01B17/64
Filed: 1951-01-31
Abstract: Ammonium thiosulphate is produced by heating an aqueous solution or suspension containing ammonium sulphite and ammonia with elementary sulphur which may be in excess, say 10 per cent., of the quantity theoretically required, at about 80 DEG  C. or above, preferably while stirring, free ammonia being present throughout the process, wherein only part of the ammonium thiosulphate is precipitated, preferably after filtration of the solution, by cooling and/or salting out, e.g. by adding ammonia, and wherein the mother liquor remaining after separation of the sulphate, if desired after concentration, is returned to the process after treatment as set out below.  The temperature may be increased as the reaction proceeds to 110 DEG -130 DEG  C. under pressure.  The reaction solution may be concentrated, before or after separation of the precipitated thiosulphate, by evaporation preferably under reduced pressure, and the solution is maintained in an ammoniacal state during the whole evaporation by addition of concentrated aqueous ammonia.  The mother liquor, remaining after thiosulphate separation, after the addition of sulphurous acid, or ammonium bisulphite, or after passage of gases containing sulphur dioxide, and, if required, after addition of further ammonia or ammonium sulphite is returned to the process for use as starting solution.
Patent GB-549705-A (GB)
Title: Improvement in resinous condensation products
IPC: C08G12/34
Filed: 1941-02-24
Abstract: 549,705. Resinous condensation products. AMERICAN CYANAMID CO. Feb. 24, 1941, No. 2510. Convention date, Dec. 30, 1939. [Class 2 (iii)] Resinous condensation products, resistant to hot water, are prepared by reacting dicyandiamide, an aldehyde and melamine, the amount of melamine employed being not more than 1 mol. per 3 mols. of dicyandiamide. The reaction is preferably conducted under alkaline conditions, and formaldehyde is the preferred aldehyde. Examples are given, in which the alkaline conditions are obtained by the addition of caustic soda or of guanidine carbonate. Optional additions to the resins are cements, zinc stearate, fibrous materials, asbestos and chrysotile, and the resins and their compositions may be used in the preparation of adhesives, asbestos brake linings, shingles, partitions, electrical insulation, impregnated sheets of paper, laminated sheets, and moulding compositions, and in the treatment of textiles.
Patent GB-1216742-A (GB)
Title: Composition for marking hot metal and method for the manufacture thereof
Inventor: LANKARD DAVID REID
IPC: C09D5/18
Filed: 1968-01-17
Abstract: 1,216,742. Coating. UNITED STATES STEEL CORP. 17 Jan., 1968 [31 Jan., 1967], No. 2608/68. Heading B2E. [Also in Divisions C4 and C5] Metals, e.g. steel plates, at 800-1600‹F during manufacture are marked by jet spraying a composition comprising, by weight, 10.5- 45.5% water glass, 27.7-80.5% water, 2.04- 23.2% kaolin, and 4.2-32.5% metal oxide (titania, wollastonite, silica, alumina, beryllia, or zirconia).
Patent GB-940199-A (GB)
Title: Modified polyvinyl acetals and polyvinyl ketals and process for preparing them
IPC: C08F283/06
Filed: 1960-01-25
Abstract: 940,199. Acetalized and ketalized graft copolymers. FARBWERKE HOECHST A.G. Jan. 25, 1960 [Jan. 24, 1959], No. 2730/60. Heading C3G. Modified polyvinyl acetals or ketals are obtained by: (a) polymerizing at least one vinyl ester with a polyalkylene glycol or derivative thereof and simultaneously hydrolyzing the product and reacting it with an aldehyde or ketone, or (b) reacting an aldehyde or ketone with the polyvinyl alcohol obtained by hydrolyzing the product obtained by polymerizing at least one vinyl ester with a polyalkylene glycol or derivative thereof. Suitable starting polymers are those described in Specifications 922,457, 922,458, 935,246 and 935,247. Aldehydes and ketones specified are formaldehyde, acetaldehyde, propionaldehyde, butyraldehyde, benzaldehyde, nitrobenzaldehyde, salicylic aldehyde, methyl ethyl ketone and cyclohexanone. The examples describe the following processes: (1) Simultaneously hydrolyzing and reacting with formaldehyde a graft copolymer of vinyl acetate and polyethylene glycol; (2) reacting with butyraldehyde a graft copolymer of polyvinyl alcohol and hydroxy propylated tributyl phenol; (3) reacting with butyraldehyde a graft copolymer of polyvinyl alcohol and polypropylene glycol; and (4) simultaneously hydrolysing and reacting with acetaldehyde a graft copolymer of vinyl acetate and polyethylene glycol. The product of (2) may be combined with a phenol-formaldehyde resin to make a baking lacquer.
Patent GB-1419486-A (GB)
Title: Device for the continuous analysis of samples by the method of non-dispersive x-ray fluorescence analysis
IPC: G01N23/22
Filed: 1974-01-21
Abstract: 1419486 Analysis using x-rays COMMISSARIAT A L'ENERGIE ATOMIQUE 21 Jan 1974 [30 Jan 1973] 02811/74 Heading G1A A set of samples 23, Fig. 1, is automatically analyzed by exciting the samples in turn with a radio-active source 16 to produce fluorescent xrays. A set of filters 48 is provided, and are automatically placed in turn between the sample being tested and a detector window 19. Thus for each sample a set of measurements is obtained, corresponding to the x-rays passed by the filters, so that its composition may be found. The samples are placed in identical cylindrical containers, and are stacked on a ramp 22 in four channels; when pins 30 are retracted the samples fall, aided by weights 29, into a trough where they can be driven forwards by plate 39 controlled by a motor 46. The radio-active source 16 is carried by plate 11 which fits into slot 9; by turning knob 14 the source is positioned under the path of samples 23. The samples are moved forward, one at a time, and are placed above the source long enough for measurements to be made as the set of filters are positioned see below. A shaped plate (92), Fig. 3 (not shown), ensures the sample under test is in the correct position. The filters are initially stacked in a tube 49. A plate 68, seen in the side view of Fig. 2, has an aperture 68a into which a filter fits. This plate is driven to and fro under the filter stack, so that one at a time the filters are removed from the bottom of the stack, placed between the sample 23 and detector window 19, and then dropped via jaws 69, 70 on to a piston 54. The jaws, which are operated by cam surfaces (not shown in Fig. 2) on the plate, ensure that the next filter remains in the plate instead of dropping straight on to the piston. The plate is reciprocated by motor 76 until the filters have all been used, at which time a motor 67 lifts the piston to place the filters back in the stack, and the next sample is moved forward for testing. The tested samples accumulate in region 7 of Fig. 1. The detector circuitry, and motor control circuitry is in box 36, Fig. 1. This contains a power supply, a detector pulse amplifier, a pulse height selector and a recorder. Two counters are provided, one to count the detector pulses and one to count the filters. A quartz clock and a measuring period control are also present. The samples tested may be compacted powders removed from the sea-bed, and are tested for composition.
Patent GB-1458968-A (GB)
Title: Anti-skid systems
IPC: B60L3/10
Filed: 1973-01-19
Abstract: 1458968 Antiskid braking systems GIRLING Ltd 14 Dec 1973 [19 Jan 1973] 2819/73 Heading F2F An antiskid braking system comprising a generator 10 driven by a wheel or axle of the vehicle to produce a voltage output signal representative of the wheel or axle speed, a differentiating circuit 12 connected thereto to produce an output representative of deceleration of the wheel or axle, means responsive to the latter output for reducing or releasing braking pressure if the said output exceeds a predetermined value has also means for continuously monitoring the outputs of both the generator and differentiating circuit and for giving a warning or effecting control if the output level is such as to indicate a likely fault in the system. As shown a second generator 16 driven by a further axle of a rail vehicle bogie has its output applied to a differentiating circuit 18, the generator outputs being fed to frequency to voltage converters 11, 17 whose outputs are fed to the differentiating circuits 12, 18 and to the inputs of a comparator 13, the outputs of the circuits 12, 18 and the comparator 13 being supplied to a logic circuit 14 which operates valves 7, 8 controlling the brakes of the two axles or wheels. The circuit 14 serves to determine faults which occur in the system and under predetermined fault conditions applies a signal along line 21 to converter 11 and comparator 13 or along line 22 to converter 17 and the comparator 13. In the event of a fault the faulty circuit is switched off or a warning given or both. The system is arranged to operate only if the wheel speed is above a predetermined level.
Patent GB-1360577-A (GB)
Title: Polyoelefin coated paper article
IPC: G03C1/79
Filed: 1972-01-20
Abstract: 1360577 Coated paper EASTMAN KODAK CO 20 Jan 1972 [22 Jan 1971] 2820/72 Heading B2E [Also in Division G2] A polyolefin coated paper article has on at least one surface thereof a multiple-layer coating consisting essentially of a, immediately adjacent the polyolefin coating, a first layer of solid chlorinated polyolefin containing at least 0.5 g. of chlorinated polyolefin per square metre of surface; and b, a second layer of C 2-4  fatty acid ester of cellulose, the second layer being immediately adjacent the first layer. The polyolefin is polyethylene or polypropylene extruded onto the paper, the chlorinated polyolefin being polyethylene or polypropylene containing from 20 to 50 wt. % chlorine and having a melt viscosity of from 10,000 to 25,000 poises. The ester may be cullulose acetate, butyrate, propionate, or cellulose acetate butyrate having a viscosity of at least 1.3 and containing at most 2.5 wt. % hydroxyl, the ester preferably being acetyl with at least 42 weight % acetyl. To apply the first layer, the chlorinated polyolefin is disolved in a non-polar solvent, cast, then heated. The celulose ester, which may contain up to 5 weight % of plasticiser such as triphenylphosphate, is uniformly spread in solution over the polyolefin then heat treated. A photosensitive emulsion may be coated onto cellulose ester layer, and a conventional sub, such as a layer of gelatin-nitrate, may be applied therebetween.
Patent GB-192699-A (GB)
Title: Improvements in amusement apparatus
IPC: A63G1/24
Filed: 1923-01-31
Abstract: 192,699. Gibert, R. Feb. 2, 1922, [Convention date]. Addition to 179,190. Drawings to Specification. Amusement apparatus.-Oscillating cradles as described in the parent Specification are mounted on a stationary platform singly or in groups which may be driven simultaneously or independently. The oscillating motion is produced by links and chains passing over toothed wheels, one of which is connected by a rod to a crank or a vertical spindle which is driven through worm-gearing or bevel-wheels by a shaft which serves to drive all the cradles. Disengaging gear is provided to stop one or more groups of cradles as desired.
Patent GB-112541-A (GB)
Title: Improved Automatic Lathe.
IPC: B23B7/04
Filed: 1917-02-28
Abstract: 112,541. Veritys, Ltd., and Rogers, D. E. Feb. 28,1917. Lathes.-Relates to hollowspindle automatic lathes of the type in which the tools are fed to the workbv cams revolving coaxially withthe spindle and consists in means, actuated by the main drive but controlled by the cams, for returning the tools and rotating the turret if one is used. In the lathe shown, the tools are carried in a turret n which is traversed towards the work c<5> by cams d<2> and returned by a screw and nut. The turret is carried by a slide n<2> which is moved on an adjustable saddle n<3>, and is connected to move with a carriage l, Fig. 3, by adjustable rods o, o<2>. The cams d<2> act on a bowl l<2> secured to a slide l<3> movable transversely on the carriage l. When a cam bears on the bowl l<2>, the slide l<3> is moved to the right in Fig. 3 against a spring l<5>, and disengages a hinged pawl l<7> from a ratchet wheel m. The carriage l and turret slide n<2> are thus traversed to bring a tool up to the work, the worm wheel g<2> moving idly over the worm g, Figs. 1 and 3, which is keyed to a shaft e, geared to the lathe-spindle. This shaft e also carries a worm h which drives the cam drum d through the gearing shown. When the cam d<2> leaves the bowl l<2>, the spring l<5> returns the slide l<3> to the left and engages the pawl l<7> with the ratchet wheel m, which, owing to its contact with the friction-disk m<4>, brakes the worm wheel g<2> so that the latter acts as a nut on the screw q and the carriage l and turret are returned to their original positions. The shaft e carries loosely a third screw or worm i, and also a fast collar j having a pin j<2> which can engage a similar pin i' on the loose screw i. The screw i moves to and fro on the shaft e under the control of the turret slide n<2>. When the turret reaches the limit of its movement to the left in Fig. 1, at which time the bowl l<2> is in one of the small depressions d<3> in the cam drum, a lug on the lower side of the turret is disengaged from a guide groove, and the turret can be rotated to bring another tool into use. This rotation is effected by the collar rotating the worm i which, through friction gear i<3>, i<5>, Fig. 5, rotates the turret spindle.
Patent GB-673205-A (GB)
Title: Improvements in and relating to vulcanising devices
IPC: B29C35/02
Filed: 1950-02-06
Abstract: 673,205. Moulds for vulcanizing hose &c. WALLACE, A. L. Feb. 6,1950, No. 2986/50. Class 87(ii) Relates to vulcanizing devices and provides a mould for articles of which the length may be unrestricted, the mould comprising two series of segments with co-operating dovetailing means and each having an operative surface for engaging the article to be vulcanized, the arrangement being such that interengagement of the dcvetailing means defines and maintains the relative positions of the two series of segments and the cross-section of the space provided for the article between their operative surfaces. The segments 8, 8' comprising the mould in which the article, e.g. a rubber hose 9 is passed through the vulcanizing chamber are attached, one series to a chain 10 and the other series to a chain 10'. Each segment has a semi-circular cut-out portion 19, 19<SP>1</SP> so that, when the upper and lower series of segments meet, a circular cavity is formed which fits the hose to be vulcanized. The segments are interengaged by a dovetail 20 (or 20') on each, the dovetail including two slots 23 and 24 (or 23' and 24<SP>1</SP>) each adapted to receive one side of a dovetail on a segment in the other series so that a segment 8 below the hose 9 will engage its dovetail with the slots of two segments 8' above the hose, with the centre of the dovetail in line with the plane of contact between two opposite adjacent segments. The driving sprockets 11, 11<SP>1</SP> have each a face 25, 25<SP>1</SP> on which the sides of the segments bear, and by these means and by correct positioning of the sprocket the two series of segments are guided into engagement.. The two series of segments thus form a mould between the pair of sprockets 11, 11' and the pair of idler sprockets 16, 16<SP>1</SP>, and the mould moves through the vulcanizing chamber as the sprokets rotate, carrying the hose with it. Similar faces 27, 27<SP>1</SP> on the sprockets 16, 16<SP>1</SP> facilitate disengagement. The vulcanizing chamber may be of conventional design, heated, e.g. by gas jets with a baffle above them. If there is a tendency for the chains to sag between the sprockets they may be supported by a guide. For articles with definite lengths the chains 10 may be discontinuous and a length of segments, locked together as they pass round the sprockets 11, 11<SP>1</SP>, may remain together when they pass the idlers 16, 16<SP>1</SP>, the mould so formed being then moved elsewhere to treat the enclosed article.
Patent GB-1312425-A (GB)
Title: Magnetic axial bearing for electricity meters
IPC: G01R11/14
Filed: 1972-01-21
Abstract: 1312425 Magnetic bearings M BAERMANN 21 Jan 1972 [27 Jan 1971] 3001/72 Heading F2A A magnetic bearing for axially supporting the rotor shaft 14 of an electricity meter comprises two cylindrical magnets 13, 15 which are so magnetized that like poles defining an air gap 4 are on one axial end face of each magnet while the other poles are on the peripheral surfaces of the magnets. The specification discusses the advantages of this arrangement which produces a purely radial magnetic field on a circle on which has a greater diameter than the permanent magnets. The magnet 13 is attached to the shaft 14, the magnet 15 being secured in a non-magnetic shell 16 which is adjustable vertically with respect to horizontal part 18 of the meter frame and which is formed with a tubular projection 23 limiting lateral displacement of the magnet 13. A bearing pin 21 attached to shell 16 co-operates with a bearing ring 21 and a bore 22 in the magnet 13 to limit axial displacement of the shaft 14.
Patent GB-1011045-A (GB)
Title: Improvements in or relating to air conditioning systems for aircraft
Inventor: ROGERS BRIAN HOWARD
IPC: B64D13/06
Filed: 1963-01-24
Abstract: 1,011,045. Air conditioning aircraft; refrigerating. NORMALAIR Ltd. Jan. 7, 1964 [Jan. 24, 1963], No. 3021/63. Headings F4H and F4V. In an air conditioning system for an enclosure of an aircraft, fresh air is passed to the enclosure through a cooler and air is recirculated from the enclosure through the cooler, a portion of the recirculated air suffering removal of odours and carbon dioxide. As illustrated, fresh air bled from one or more compressors of the aircraft engines is passed through an air or fuel cooled heat exchanger 2 and split into three streams, one of which 4 passes to the enclosure through a heat exchanger 15 cooled by a refrigeration circuit, and the other two of which 5 and 6 drive turbines 7 and 8. The turbine 7 drives a fan 9 circulating air from the enclosure to join the main airstream 4 at 14, and the turbine 8 drives compressors 10 and 11 of a refrigeration circuit including the heat exchanger 15, a subcooler 22, a condenser 21 cooled by air or fuel and expansion valves 15A and 22A. A turbine 12 driven by bleed air from the engine compressors drives a fan 13 to draw part of the air withdrawn from the enclosure at 17 through a lithium hydroxide carbon dioxide extractor 24 and an activated carbon deodorizer 20. In modifications (not shown), the turbines 7, 8 and 12 may be driven by ram air or replaced by electric motors, the refrigeration circuit may be replaced by a boot strap arrangement, the carbon dioxide extractor may be omitted, and dehumidifying means may be provided in series with or incorporated with the deodorizer or with the carbon dioxide extractor if such is present.
Patent GB-450323-A (GB)
Title: Improvements in or relating to the preservation of rubber
IPC: C08K5/16
Filed: 1935-01-30
Abstract: A reaction product of an aliphatic ketone and an aromatic primary amine free from substituents in the para-position is resinified by treatment with a strong non-oxidizing mineral acid. As an example, 100 parts of 2.2.4-trimethyldihydro-quinoline obtained by reacting acetone and aniline are treated with 55 parts of concentrated hydrochloric acid for 20 hours at 85--90 DEG  C., and the excess acid is subsequently neutralized.  The products are useful as anti-oxidants for rubber &c.ALSO:Antioxidants for rubber &c. are obtained by resinifying with a strong non-oxidizing mineral acid a reaction product of an aliphatic ketone and an aromatic primary amine which is free from substituents in the para position.  As an example, 100 parts of 2.2.4-trimethyldihydroquinoline obtained by reacting acetone and aniline are treated with 55 parts of concentrated hydrochloric acid for 20 hours at 85-90 DEG  C., and the excess acid is then neutralized.
Patent GB-138984-A (GB)
Title: Cigar lighter
IPC: F23Q2/14
Filed: 1919-02-10
Abstract: 138,984. Lansen, C. F. Feb. 10, 1919. Pocket igniters, frictional.- A pocket igniter comprises a casing provided with a stopbead 2 and carrying a wick 9, and a cap 3 fitting over the casing 1 and carrying a pyrophoric element 5 in a troughshaped holder 4. During the removal of the cap, the pyrophoric element 5 rubs against a spring striker 6 fixed to the casing 1 and produces sparks, which ignite the fuel carried by the wick 9.
Patent GB-764357-A (GB)
Title: Improvements in or relating to multiple pruning shears
IPC: A01G3/053
Filed: 1955-02-03
Abstract: 764,357. Hedge-cutters; mowing machines. AVALLET, L. Feb. 3, 1955 [Feb. 23, 1954] No. 3264/55. Classes 6(2) and 6(3). A reciprocating-blade cutter comprises a stationary bar 2 having a plurality of blades 3, 4, 5 pivoted therealong, each alternate blade being attached to one of a pair of bars 25, 26 reciprocated in opposite directions and each blade having one convexlycurved edge BGD and one edge BE that is either straight or slightly incurved and forms a counterblade  co-operating with the convex edge of the adjacent blade. The blades have their cutting edges inclined alternately upwardly and downwardly of the carrier 2. The device may be mounted on a telescopic member secured to a tractor the bars being power-driven through a jointed shaft, or the device may be pivoted to an adjustable arm on a tractor so as to be operable in various alternative planes.
Patent GB-620968-A (GB)
Title: Improvements in or relating to devices for preventing the formation of ice on conductor rails
IPC: E01H8/10
Filed: 1947-02-05
Abstract: Anti-freezing liquid is supplied to conductor shoes for application thereby to the conductor rails of an electric traction system by <PICT:0620968/III/1> <PICT:0620968/III/2> <PICT:0620968/III/3> means of an apparatus comprising a container for the liquid adapted to be so mounted that its upper surface is traversed by the conductor shoes, a roller mounted in said container, spring means urging said roller upwardly towards a position in which it projects through an opening in the upper surface of the container, and externally operable means for urgin the roller downwardly into the container and retaining it in a lowered position.  Referring to the drawings, a container 10, mounted between conductor rails 16, 17, which are connected by a copper strip 18 and fitted with a lid 21 with opening 25, carries a metal hubbed roller 26 on which is mounted a grooved rubber tyre 27. The roller is carried by a spindle 28 inserted via sleeves 31 into eyes 32 on the ends of two blade-springs 33, the other ends of which are fixed at 34 and 35 to the container base. The springs 33 urge roller 26 upwards into slot 25.  Shaft 37 fitted into the side walls of the container carries arms 38, each acting on one of the springs 33 and can be rocked by movement of external arm 41 so that in one position the arms 38 press down springs 33 and depress and hold depressed into the container the roller 26 while in the other position the arms release the springs which force the roller into its upper position.  Rocking of arm 41 may be carried out by manual, electrical or fluid pressure means and the container is mounted so that its upper surface is continuous with that of the rails.
Patent GB-217532-A (GB)
Title: Combined cigarette and match box
IPC: B65D85/10
Filed: 1924-02-11
Abstract: 217,532. Langlais, A., and Morin, A. Feb. 11.1924. No Patent granted (Sealing fee not paid). Matches, boxes specially designed for.-A book of matches 20 is carried in slots 17, 18 provided in a flap 4 extending from one end of a cigarette box. The flap 4 is held against the side of the box to form an additional wall bv engaging its free end in the end of the box.