baber/WOPTO huggingface dataset:
Patent GB-870047-A (GB)
Title: New complex metal compounds of monoazo-dyestuffs containing ª--haloacyl-amide groups and their manufacture and use
Filed: 1958-02-25
Abstract: The invention comprises metal complexes of monoazo dyes which contain at least one acid group imparting solubility in water and an acylated amino group of which the acyl group is derived from a b -halo-aliphatic acid.  The dyes are made by treating a metal complex of an appropriate aminoazo dye with an acylating agent e.g. an anhydride or halide of an appropriate carboxylic acid. Preferably the dyes contain more than one acid group and the haloacyl residue has at most 4 carbon atoms and a single chlorine atom.  Indicated as compounds providing the acyl residues are b -aliphatic-halocarboxylic, -sulphinic and -sulphonic acids. b -chloro-propionyl and -butyryl and b -homopropionyl and -chlorethane sulphonyl residues are specified.  Preferred dyes for complex formation are those of formula:-  R(CO)n-1OH,-N=N-R1 where n is 1 or 2, R is a benzene or naphthalene residue having a sulphonic acid group, the (CO)n-1OH group being #s to the azo group and R1 is the residue of an aminonaphthol sulphonic acid bound to the azo group vicinal to the hydroxy group and in which at least one of R or R1 has a b -chloralkanoylamino group.  Preferred acid groups are carboxylic and sulphonic acid groups.  Nickel, chromium, cobalt, copper, aluminium and iron are specified metals. 1, 1- or 1, 2-complexes may be obtained.  1, 1-complexes are of advantage for copper and nickel and 1, 2- for cobalt and chromium. Indicated or specified diazo components are 6-nitro-1-amino- 2-naphthol- 4-sulphonic acid, chloro- and nitro- #s-aminophenols, #s-aminophenol mono- and disulphonic acids and #s-aminobenzoic acids and their sulphonic acids. Indicated and specified coupling components are 1-aminoaryl- 5-pyrazolones, 1-phenyl- 3-methyl-5-pyrazolone, b -ketocarboxylic acid arylamides and aminonaphthol and naphthol sulphonic acids e.g. 2-amino- 8-naphthol- 6-sulphonic acid, 2-alkylamino- 5-naphthol- 7-sulphonic acids, 2-(41- aminobenzoyl- and -phenylamino)- 5-naphthol- 7-sulphonic acids.  The amino group to be acylated may be formed from appropriate dyes containing nitro or acylamino groups.  The dyes colour nitrogenous textile materials, e.g. wool and superpolyamides but are of particular use with polyhydroxylated fibrous materials such as cellulosic materials, e.g. linen, cellulose and cotton, and synthetic fibres, e.g. regenerated cellulose.  The dyes are fixed by treatment with an acid-binding agent.  Examples are provided of the preparation of the dyes and their use in colouring processes cotton being given red, blue, green and grey shades.
Patent GB-145379-A (GB)
Title: Improvements in valve mechanism for controlling the admission of steam to and from steam engine cylinders
IPC: F01B31/12
Filed: 1920-03-01
Abstract: 145,379. Patchett, W., and Stafford, W. March 1, 1920. Addition to 139,134. Exhaust pipes. - A non-return valve s is placed in each exhaust-pipe r so that the exhaust from one valve does not cause back-pressure on the other.
Patent GB-875095-A (GB)
Title: Improvements in and relating to the pivoting of instrument shafts
Inventor: FILHOL STUART JULIAN
IPC: F16C11/02
Filed: 1959-02-24
Abstract: 875,095. Abrading. FILHOL Ltd., J. P. Feb. 23, 1960 [Feb. 24, 1959], No. 6272/59. Class 60. [Also in Group XXV] The conical end 14 of an instrument pivot shaft of small diameter (about 1 mm.) is provided with a conical tip 11 of greater included angle by penetrating the end a predetermined distance into the bristles 17 of a brush dressed with abradent and then moving the shaft and brush relatively in all lateral directions. The extent of penetration is then reduced and the movement continued to round the apex of the tip 11. A plurality of shafts may be held in a rotary platten for simultaneous treatment, the platten being reciprocated radially relative to a rotating annular brush the central opening of which has approximately the same diameter as the platten.
Patent GB-767725-A (GB)
Title: Process for the manufacture of lactams
Filed: 1954-03-03
Abstract: Lactams are prepared by reacting at a high temperature an o -halogen-fatty acid containing at least 4 carbon atoms with an excess of concentrated aqueous ammonia, and the lactam formed is isolated by extraction with a solvent and subsequent distillation. The reaction is preferably conducted within the temperature range 200-350 DEG  C. and preferably in a continuous manner by passing a mixture of the reactants through a reaction zone brought to the necessary reaction temperature, the period of residence in said zone being such that the reaction goes practically to completion. Specified starting materials are g -halogen-butyric, d -halogen-valeric or e -halogen-caproic acids.  The examples describe the preparation of d -valerolactam and pyrrolidone-(2).
Patent GB-152295-A (GB)
Title: Improvements in or relating to the spring suspension of vehicles
IPC: B60G11/08
Filed: 1920-03-02
Abstract: 152,295. Le Grain, R. L. G., and Savary, P. H. R. Oct. 3, 1919, [Convention date]. Addition to 141,329. Void [Published under Sect. 91 of the Act]. Equalizing load on springs; springs, arrangement of.- Consists in an improvement in the method of spring suspension described in the parent Specification when it is applied to driving-wheels, and consists in using four springs instead of two between the driving-wheels and the body thereby providing resistance to the forward pressure. Pairs of laminated springs 2, 3, 4, 5 are secured to the upper and lower faces of the differential casing, yokes 6 being mounted on the ends of the four springs to support the axle 7. Pressure bars may secure the ends of the springs to the chassis.
Patent GB-373663-A (GB)
Title: Improvements in or relating to the flotation concentration of minerals
IPC: B03D1/012
Filed: 1931-03-02
Abstract: Carbon oxy-sulphide is prepared by passing carbon monoxide and sulphur vapour through hot clay or porcelain tubes or by subjecting the mixture to electrical discharge; or, on a small scale, by the action of sulphuric acid on potassium sulphocyanide, the product being purified by passing it through string caustic soda solution and sulphuric acid.ALSO:Compounds of the structure ROC : OSM where R is a hydrocarbon radical and M is hydrogen, a metal, or another ROC : OS group are used in the flotation concentration of ores.  The compound may be an alkyl monothiocarbonate which may be prepared by passing carbon oxysulphide into a solution of a caustic alkali, (e.g. potassium hydroxide), in the desired aliphatic alcohol. Disulphides are obtained by the action of potassium ferricyanide on an alkyl monothiocarbonate, e.g. by the action of potassium ferricyanide on potassium ethylmonothiocarbonate dicarbethoxy - disulphide is obtained.ALSO:In the flotation concentration of ores there is added to the pulp a compound of the structure ROC : OSM where R is a hydrocarbon radical and M is hydrogen, a metal, or another ROC : OS group.  The compound may be an alkyl mono-thio-carbonate or a disulphide of the structure ROC : OS : SO : COR, substances specifically refined to being derivatives of ethyl, amyl, butyl, benzyl, or cyclohexyl mono-thio-carbonic acid, e.g. potassium ethyl mono-thio-carbonate and the disulphide obtained by treating this compound with potassium ferricyanide and known as ethyl carbonic acid disulphide or dicarbethoxy disulphide.  Examples are given of the use of one of the above reagents in the concentration of copper minerals from copper iron ores in neutral, acid, or alkaline suspension with cresol or pine oil as frothing agent; of copper from oxidized copper ores using coal tar creosote and pine oil as frothing agent; of lead and zinc from their respective ores; of gold and silver from an ore containing both these metals; and in the treatment of lead-zinc and copper-zinc ores in both of which cases a concentration is first carried out with cresol as frothing agent and with sodium carbonate, sodium cyanide and zinc sulphate as modifying agents to separate the lead and copper respectively, the zinc being then recovered by a second concentration using creosote, pine oil and copper sulphate. The alkyl mono-thio-carbonates are prepared by passing carbon oxy-sulphide into a solution of a caustic alkali, e.g. potassium hydroxide, in the alcohol containing the desired hydrocarbon radical. Carbon oxy-sulphide is prepared by passing carbon monoxide and sulphur vapour through hot clay or porcelain tubes or by subjecting the mixture to electrical discharge; or, on a small scale, by the action of sulphuric acid on potassium sulphocyanide, the product being purified by passing it through strong caustic soda solution and sulphuric acid.  Specification 294,921, [Class 82 (ii), Washing granular &c.], is referred to.
Patent GB-793795-A (GB)
Title: Improvements in and relating to jet-propelled aircraft
Inventor: CATTANACH JAMES
IPC: B64C29/00
Filed: 1955-03-04
Abstract: 793,795. Electric correspondence control systems. ENGLISH ELECTRIC CO., Ltd. March 5, 1956 [March 4, 1955], No. 6525/55. Class 40 (1). The axis of thrust of an aircraft rocket motor is automatically adjusted to prevent turning of the craft about the centre of gravity. The direction of jet thrust is rotated about a mean position, continuously, under control of a. servo system at a point behind the craft centre of gravity. In the mean position the jet thrust acts through the centre of gravity of the craft. As shown, Fig. 4, the required angle of inclination, Br, of the jet motor relative to a datum, is given by the function generator 50 and is compared at 52 with the value of the angle A, measured by the gyroscope 51, between the vehicle central axis and the datum. The comparison signal is applied to the motor control system 53 to adjust the jet thrust angle. The electrohydraulic servo unit 58 has a resistancecondenser feedback unit 59. The component 55 represents the effect of the rocket thrust and craft angular acceleration upon the input to the measuring gyroscope 51.
Patent GB-457870-A (GB)
Title: Improved apparatus for dispensing soap and like substances
IPC: A47K5/09
Filed: 1935-03-04
Abstract: 457,870. Soap holders. GOMEZ, A., 16, Boulevard Soult, Paris. March 4, 1935, No. 6762. Void [Abridged as open to inspection under Sect. 91 of the Acts, April 4, 1936]. [Class 131] [See also Groups XVII, I, and VI] An apparatus for cutting sections from a cake of soap &c., and dispersing them, consists of a tubular receptacle 3 with a glass &c. liner 2 and an air-tight cover 4, the receptacle being integral with a frame 5 constituting a bracket and having a surface 6 which permits the frame to be secured to a wall. A slide comprising a cutter 10 and a supporting plate 9 can be reciprocated by a handle 15 so as to cut sections from the cake, the sections filling into the hand of the user which is placed below the apparatus. The slide makes a substantially airtight fit with the container so that the contents are protected from evaporation &c. The slide is returned by springs 16, Fig. 3, and is limited by resilient stops (not shown). The cutter may have a concave circular cutting edge, a straight edge or a V-shaped edge, or the V may have curved sides. In the latter case the blade may be in two parts. The slide moves in contact with surfaces 7, 14 which keep it clean. Means for adjusting the cutter for different thicknesses of slice may be provided, and the slide may be made to rock about a pivot. The cake of soap may be fed downwardly by a weight 17.
Patent GB-453334-A (GB)
Title: Method and arrangements for the automatic control of photographic apparatus
IPC: G03B7/12
Filed: 1936-03-06
Abstract: 453,334. Photographic exposure meters. TUBASCOPE SOC. ANON., 51, Rue Cambon, Paris. March 6, 1936, No. 6785. Convention date, Dec. 5, 1935. [Class 98 (i)] Automatic adjustment of either the diaphragm opening or the exposure-time sotting of photographic apparatus when the other has been correctly adjusted is effected by means of an electromagnet excited by a photoelectric device exposed to the incident light, and a regulating lever for adjusting the diaphragm or exposure-time setting which is progressively moved until it causes an armature to be pulled away from the magnet with a snap action, the regulating movement then being automatically stopped. As shown the exposure-time adjustment T is coupled to a variable diaphragm d in the photoelectric device P, Fig. 4, which comprises a photoelectric cell C and two lenses L, l, the coupling being such that the amount of light passing the diaphragm is proportional to the time of exposure. Current from the cell C passes to an electromagnet M, this exciting current being thus proportional both to the time of exposure and to the brightness of the object to be photographed. The magnet attracts an armature A, pivoted at O, and carrying gears, the teeth of which engage an operating lever B, the teeth also engaging a rack h carrying an index D and movable to vary the diaphragm aperture, the index being connected by a spring f to an extension e of the armature A. The index T is set to the required exposure-time, and the lever B is moved to effect the exposure. During the stroke of the lever B from a to b it rotates the gears which move the rack h gradually to close the diaphragm openings until the spring f is stretched sufficiently to pull away the armature A thus disengaging the gears and fixing the diaphragm aperture. Further movement of the lever B from h to c effects the exposure. In a further modification the magnet may be rotated as a whole with its armature, the latter being pulled away by a spring when the correct size of aperture has been attained. The apparatus may also be used for the reverse operation of automatically adjusting the exposure-time when the necessary aperture size is known. For films of different speeds a movable opaque compensation plate F may be carried by the photoelectric device P. The view finder V, Fig. 5, may have a circle E to enable the camera to be adjusted so that light from any desired part of the image may fall centrally on the photoelectric device P.
Patent GB-452869-A (GB)
Title: Improvements in or relating to cast metal vertical gulley gratings, kerb outlets and the like
IPC: E03F5/046
Filed: 1935-03-05
Abstract: 452,869. Gully covers; reflectors. NEEDHAM, W., Millgate Foundry, Millgate, Stockport. March 5, 1935, No. 6837. [Class 107] [See also Group XVIII] Cast metal vertical gully gratings, Fig. 2, kerb outlets, Fig. 6, and like devices for draining surface water from roads are provided with reflectors d to define their positions at night or in fog. As applied to the gully grating the reflectors may be placed in the side walls g<2> of the gully frame g or, according to a modification, upon vertical bars of the grating. The surfaces upon which the reflectors are mounted are inclined in such manner as to face the lights of oncoming traffic. In the case of kerb outlets the reflectors are mounted upon the inclined faces a<1> of a cast iron unit which is let into the kerb e. The unit is formed with a fixed cover and with an outlet c which may have a spigot for connection with a drainage pipe. In a modification, the unit is provided with a hinged lid and in another modification the unit has an inclined front wall with a projecting arched portion which overhangs and protects the reflectors.
Patent GB-1102661-A (GB)
Title: Apparatus for parking motor cars in garages
IPC: B60S13/02
Filed: 1965-02-17
Abstract: 1,102,661. Mechanical garages. SCHœCHTERMANN & KREMER-BAUM A.G. FœR AUFBEREITUNG. 17 Feb., 1965 [3 April, 1964; 17 Aug., 1964], No. 6913/65. Heading B8E. A multi-storey garage comprises a lift 1, Fig. 1, for transporting the cars on pallets 5 between the parking spaces 3 and an entrance a and an exit b, the pallets being moved into and out of the lift 1 by friction wheels engaging their underside. The lift 1 has movably disposed thereon a carriage 4 for parking cars adjacent one another on either side of the liftshaft 2. The pallets 5 run on castors 6. At the entrance a are provided friction wheels 8 mounted on pivoted arms 9, the wheels being driven by an electric motor 10 and the arms 9 being connected to an electrical adjusting device 11 for biasing the wheels 8 against the pallets; the latter may be tilted to test the car brakes. The carriage 4 has stationary friction wheels 12, 12<SP>1</SP>, 12<SP>11</SP> and pivotally mounted friction wheels 13, 13<SP>1</SP> movable by devices 14, 14<SP>1</SP>; all the friction wheels are driven through chain drives by an electro motor 16. The carriage 4 is moved relative to the lift 1 by a driven gearwheel 20 engaging a rack 21 on the lift, Fig. 2. The carriage 4 may be omitted, the friction wheels being then disposed on the lift. Friction wheels 23 are provided at the exit 6. Each pallet comprises U-sectioned side members 102, Fig. 3, forming tracks for the car wheels, each member 102 being formed by compression moulding or folding and having flanges 103, 104, the flanges 103 being interconnected by a plate 105. The pallets are reinforced by transverse ribs 106 and tie-rods 107 and by longitudinal U-sections 108 which form the tracks for the friction wheels. Each pallet 7 has four castors made of a synthetic resin material or having rubber tyres. The parking spaces 3 have rails 112 in which the castors run. Oil and water dripping from the cars drain through spouts 115 into the rails 112 which lead to drain pipes 116, 117.
Patent GB-455683-A (GB)
Title: Improvements in luminous electric discharge tubes
IPC: H01J61/42
Filed: 1936-03-09
Abstract: 455,683. Discharge lamps. SOC. ANON. POUR LES APPLICATIONS DE L'ELECTRICITE ET DES GAZ RARES, ETABLISSEMENTS CLAUDE-PAZ & SILVA, 8, Rue Cognacq-Jay, Paris. March 9, 1936, No. 7073. Convention date, Dec. 7, 1935. [Class 39 (i)] A luminous discharge tube is coated internally with fluorescent material, and is filled with pure xenon or pure krypton or a mixture of these, to the exclusion of any other gas or vapour, particularly mercury. A high efficiency is obtained from these gases, without the disadvantages of mercury filling, i.e. dependence on temperature and formation of opaque patches on the wall. Large tubes of 40-80 mms. are used, with pressures of 1-10 mms. and current densities of 50-100 milliamperes. The fluorescent material may be powdered zinc silicate. High frequency excitation may be employed, with high instantaneous current densities to give the spark spectra of xenon and krypton.
Patent GB-232749-A (GB)
Title: Improvements relating to bobbins or the like used in looms
IPC: D03D39/06
Filed: 1924-03-20
Abstract: 232,749. Robinson, J. E. March 20, 1924. Creel - frame arrangewents.-Each plate spring 8 used for braking the bobbins &c. of carpet looms has an internallythreaded large boss 10 to receive an adjusting screw 11 whereby the brake effect may be varied. The plate spring is slotted to receive the trunnion 2 and is bent towards the bobbin at both its upper and lower ends. The screw 11 passes through an opening in the bracket 3. According to the Provisional Specification, a cam, eccentric, or adjustable pin may replace the screw.
Patent GB-542800-A (GB)
Title: Jig for the construction of the hulls of wood or metal boats of round bilge form
IPC: B63B3/00
Filed: 1940-04-23
Abstract: 542,800. Jigs for boats. SIMPSON, C. E. April 23, 1940, No. 7286. [Class 113 (i)] For the construction, in an inverted position, of the hulls of wood and/or metal boats of round bilge form from prefabricated parts, a wood or metal jig, which forms no part of the hull structure and which is shaped from a previously prepared full-size geometrical lay-out of the hull, comprises longitudinal and transverse formers A, B and longitudinal battens H which connect all the formers and which lie midway between the positions J of the plank laps and also along the sheer line. These battens are set in from the outer surface of the transverse formers A by a distance equal to the thickness of the transverse ribs K of the boat hull. The positions of the transverse ribs K are marked on the battens H, and the positions C of the planking or plating and the positions D of the stringers are marked on the formers A, B. The latter are removably secured by screws or bolts to a rigid wood or metal foundation F which may be mounted on wheels G or secured to the floor. Cleats Y and a wrapper guide X are secured to the forward, or to the forward and aft, edges of the longitudinal formers B. The battens H are secured to the formers A, B as by means of clips, bolts, or screws E. To the complete jig thus formed is secured the centre line main framing of the hull which is pre-fabricated into a single unit comprising the heel L, stem M, apron O, fore deadwood P, hog Q, aft longitudinal member R, sternport N, and transom frame S. The previously prepared transverse ribs K are all passed under this inverted centre line main framing and are engaged with the outer surfaces of the battens H to which they are temporarily secured by cramps, clips, or tack nails T. The latter are removed as the planking or plating is secured to the ribs K, and finally the gunwales and other outside fittings are secured in position. The hull is then removed from the jig, placed upright in a cradle, and the interior fitting proceeded with.
Patent GB-673422-A (GB)
Title: Improvements in or relating to the treatment of tissue paper
IPC: D21H17/59
Filed: 1950-03-23
Abstract: Tissue paper &c. for use as cigarette tips &c. is treated with a liquid siloxane having 1.75 to 2.25 alkyl and/or aryl radicals per silicon atom, e.g. with a copolymer of 10 mol. methylsilsesquioxane, 80 of dimethylsiloxane and 10 of trimethylsiloxane, or with 45 mol. of phenylmethyldi-, 45 of dimethyldi-, and 10 of trimethyl-chlorosilane.
Patent GB-350013-A (GB)
IPC: G01S1/02
Filed: 1930-03-06
Abstract: 350,013. Aircraft landing places. EATON, W. S., 3323, Hollydale Drive, Los Angeles, U.S.A. March 6, 1930, No. 7379. Convention date, March 11, 1929. [Class 4.] Aerials arranged to emit vertically directed waves are provided at an aircraft landing place, and co-operate with indicating means on the aircraft to give its height and the position of the aerials. The arrangements at the landing place comprise three pairs of buried aerials 55, 56, 57, as shown in the Figure, which are energized from transmitters 66, 72, through a wind-controlled switch 58, in such a way that the pilot can land on the right course and into the wind. By a prearranged convention, the pilot lands with the aerial supplied with a standard frequency on his right, for example, while the " station " frequency is supplied to the other aerial. Thus, the switch 58 driven by the wind vane 60 automatically reverses the two frequencies on a reversal of the wind direction. Landing lights 61 .. 61d energized by a generator 81, are also controlled by the switch 58 in such a manner as to illuminate a course in the direction of the wind and from the desired end. The two aerials at the landing place may be replaced by one, and two sets of directional aerials spaced apart used on the aircraft to give the same indication. The invention may be utilized for determining the boundaries of the field, if the height and wind direction are already known, by arranging four aerials surrounding the area and carrying different frequencies.