baber/WOPTO huggingface dataset:
Patent GB-912563-A (GB)
Title: Isocyanurate compounds
IPC: C08G69/26
Filed: 1961-01-27
Abstract: Polyamides are prepared by heating salts of polymethylene diamines having 4 to 12 carbon atoms with tri-(b -carboxyethyl) isocyanurate to a temperature of between 175 DEG  and 300 DEG C.  Polyesters are formed by heating tri-(b -carboxyethyl) isocyanurate with a polyhydric alcohol, a polyhydric alcohol partially esterified with a carboxylic acid, or a mixture of a polyhydric alcohol and a carboxylic acid other than the isocyanurate.  Suitable alcohols are ethylene, diethylene, alpha-propylene and decamethylene glycols, glycerol and pentaerythritol.  Suitable carboxylic acids are oleic, linoleic, ricinoleic, malonic, succinic and adipic acids.ALSO:The invention comprises (1) tri-(b -cyanoethyl)isocyanurate of the formula:- <FORM:0912563/IV (b)/1> and the preparation thereof by reacting cyanuric acid with acrylonitrile at elevated temperatures; (2) tri - (b  - carboxyethyl)isocyanurate of the formula:- <FORM:0912563/IV (b)/2> and the preparation thereof by hydrolysis of tri-(b -cyanoethyl)isocyanurate; and (3) salts of tri - (b  - carboxyethyl)isocyanurate with C4-12 polymethylene diamines and the preparation thereof from the two components in a liquid medium.  The diamine salts (3) may be heated to give resinous polyamides, while the free acid (2) may be condensed with polyalcohols, partially esterified polyalcohols or mixtures of polyalcohols and carboxylic acids at elevated temperatures to give resinous polyesters.
Patent GB-576536-A (GB)
Title: Improved differential coupling mechanism
IPC: F16D3/60
Filed: 1944-02-22
Abstract: 576,536. Universal joint mechanism. LACHMANN, G. V., and SUPPANCIC, G. O. Feb. 22, 1944, No. 3267. [Class 80 (ii)] In a mechanism in which two co-axial shafts are connected to a third shaft, inclined at an angle thereto, through individual universal joints having a common centre but arranged with their rocking axes out of phase, means are provided for altering the magnitude of the periodic variations produced in the relative angular velocities between the two co-axial shafts. In one arrangement, Figs. 3 and 4, which can be utilised as a steering gear, one co-axial shaft A20 has a sprocket A201 suitably, coupled to the steering apparatus and is actuated over. a part of one revolution by a lever A211, the third shaft A22 being coupled by pivotal links A26, A27 to the shaft A21, A20 respectively and being carried by a housing A30 capable of oscillation about pivot bearings A31, A32. The shaft A22' carries a gear segment A33 which meshes with a fixed segment A34 on the main housing A35 so that rotation of the shaft A22 also produces automatically an oscillation about the pivots A31, A32, with a corresponding variation in the relative angular velocities between shafts A20 and A21. In this case, in addition to the angular position of the third shaft being varied, the resulting inclination of. the links A26, A27 results in a variation of the angle between the racking-axes of the universal joints. The function of the three shafts may be interchanged, for example, the third shaft A22 may be utilised as a driving shaft to drive both shafts A20, A21, the angular position of shaft A22 and/or the angle between the rocking axes of the two universal joints being adjustable to produced the desired variation between the movement of the shafts. Various ether arrangements utilising universal joints in the form of inner and outer pivotally connected concentric rings, with means for varying the position of these rings to effect an adjustment of the rocking axes, are described.
Patent GB-1116773-A (GB)
Title: Method of treating cellulose fibres and composition resulting therefrom
IPC: D21H17/55
Filed: 1966-01-25
Abstract: A sized sheet of flexible fibrous material comprises cellulosic fibres, e.g. paper or fabric, coated with the reaction product of at least one polyamide and a polyisocyanate.  The polyamide has an amine number of at least 3, e.g. 3-450, and is the condensation product of at least one polymeric polyene fat acid, or reactive ester or acyl derivative thereof, and at least one polyamine.  The amount of polyamide in the reaction product may be not greater than the weight of cellulose present, e.g. 0.2-100% wt.  The polyisocyanate in the reaction product can be in the amount between 1/3 and 10 times the weight amount of polyamide. The sheet is made by mixing or impregnating cellulosic fibres with the polyamide then impregnating a sheet of these fibres with the polyisocyanate.  The polyisocyanate may have two or more isocyanate groups, e.g. toluene 2, 4 diisocyanate, toluene 2, 6 diisocyanate, methylene bis (4-phenylisocyanate), 2, 4, 4\sv triisocyanate diphenyl ether in toluene diisocyanate, the phenol adduct of the reaction product of a polyol and a diisocyanate, and mixtures thereof.ALSO:A sized sheet of flexible fibrous material comprises cellulosic fibres, e.g. paper or fabric, coated with the reaction product of at least one polyamide and a polyisocyanate.  The polyamide has an amine number of at least 3, e.g. 3-450, and is the condensation product of at least one polymeric polyene fat acid, or reactive ester or acyl derivative thereof, and at least one polyamine.  The amount of polyamide in the reaction product may be not greater than the weight of cellulose present, e.g. 0.2-100% wt.  The polyisocyanate in the reaction product can be in the amount between 1/3 and 10 times the weight amount of polyamide. The sheet is made by mixing or impregnating cellulosic fibres with the polyamide then impregnating a sheet of these fibres with the polyisocyanate.  The polyisocyanate may have two or more p  isocyanate groups, e.g. toluene 2, 4 diisocyanate, toluene 2, 6 diisocyanate, methylene bis (4 - phenylisocyanate), 2, 4, 4\sv triisocyanate diphenyl ether in toluene diisocyanate, the phenol adduct of the reaction product of a polyol and a diisocyanate, and mixtures thereof.
Patent GB-926305-A (GB)
Title: An improved method of cleaving organic hydroperoxides
IPC: C07C37/08
Filed: 1961-01-27
Abstract: Catalysts for clearing hydroperoxides are acid-activated minerals such as aluminas or silicates and especially clays such as montmorillonite, bentonite, fuller's earth, attopulgite, kaolinite or kaolin, wherein alkali and alkaline earth cores have been replaced by hydrogen ions and which contain added free acid. The latter may be a mineral acid such as HC1, HB5, HC103, HC104, H2SO4 or H3PO4, or a strong organic acid such as trichloroacetic, benzenesulphonic or phenolsulphonic acids.ALSO:Hydroperoxides of formula RR1R11COOH are cleaved by treatment with acid-activated minerals in which alkali and alkaline earth ions have been replaced by hydrogen ions and which contain free acids; R is an aromatic radical which may be substituted, e.g. by the group -CR1R11OOH, R1 and R11 are H or aliphatic radicals or links in a common aliphatic ring.  The cleavage catalysts may be aluminas or silicates, particularly clays such as montmorillonite, bentonite, fuller's earth, attapulgite, kaolinite and kaolin; the added acid may be a mineral acid such as HCl, HBr, HClO3, HClO4, H2SO4 or H3PO4, or a strong organic acid such as trichloroacetic, benzene-sulphonic or phenolsulphonic acids.  In examples, m-diisopropylbenzene dihydroperoxide and isopropylbenzene hydroperoxide gave resorcinol and phenol respectively; other specified hydroperoxides are those of methylisopropylbenzene and isopropylnaphthalene.
Patent GB-213540-A (GB)
Title: Improvements in rotary valves for pipe lines
IPC: F16K5/20
Filed: 1924-02-08
Abstract: 213,540. Huguenin, A., and Gagg, A. March 28, 1923, [Convention date]. Rotary spherical valves; wedging or jamming. -The closure face 8 of a rotary spherical &c. valve is pressed against its seating when the valve is closed by fluid pressure admitted to the back by a supply pipe 14 and control valve 13; to open the valve the fluid pressure is released from behind the face 8 by a discharge pipe 16 controlled by a valve 15. For this purpose the pressure fluid is preferably conducted through one of the two journals 2, 3 of the valve, as shown.
Patent GB-591285-A (GB)
Title: Improvements relating to gear mechanisms
IPC: F16H57/12
Filed: 1945-02-09
Abstract: 591,285. Toothed gearing. BELSEY, F. H., SHRUBB, K. F., and METROPOLITANVICKERS ELECTRICAL CO., Ltd. Feb. 9, 1945, No. 3363. [Class 80 (i)] Backlash between the gears 1, 2 of instrument type mechanism having their teeth of magnetisable material, is prevented by magnetic flux, produced by a coil 3, passing through the teeth. A return path for the flux may be provided by a core of magnetic material. According to the Provisional Specification, the gear shafts may be of magnetic material, the magnetic circuit through the gears and shafts being completed through the mounting means for the shafts.
Patent GB-1087573-A (GB)
Title: Apparatus for preparing hot water
IPC: F24H1/44
Filed: 1965-01-26
Abstract: 1,087,573. Water heaters. BUDERUS'SCHE EISENWERKE. Jan. 26, 1965 [Jan. 30, 1964], No. 3366/65. Heading F4A. Water for heating and for consumption is heated in separate chambers 3, 4 by hollow porous, ceramic gas radiators 11, 10, the chambers being separated by a heat conducting partition 2 so that varying heat requirements are compensated for by heat conduction through the partition. Each chamber is provided with water inlet and outlet pipes and the burners are supplied with combustible gas-air mixture by a fan 12, the products of combustion passing through helical tubes 11a to a common outlet 13. The heat conducting partition 2 is corrugated. In a modification the partition is S-shaped in plan and the roof of the heater ascends towards one corner where the hot water removal pipes are situated. The apparatus may be designed for suspension from a wall.
Patent GB-314820-A (GB)
Title: Improvements in or relating to time indicating apparatus
IPC: G04B19/34
Filed: 1928-02-03
Abstract: 314,820. Bridgman, V. Feb. 3, 1928. Dials and scales, illuminating. - A clock is provided with an open or transparent or translucent dial, there being a mirror which directs light (daylight or artificial) through the dial or reflects the image of the illuminated dial. A casing 1 supports the dial 4 on a sheet of roughened glass 2, a central plate 6 hiding the motionwork 9, 10 and one of four arms 5 screening the spindle 11 which leads to the clockwork mechanism. The daylight passes through a sheet of glass 12 and a mirror 3 reflects the image of the dial. The dial may be painted on the glass 2. For artificial illumination a lamp 14 is used, the light being reflected downward by the roughened surface 13. A blind or roller having a reflecting surface may be pulled over the glass 12. Instead of mirror 3 reflecting the dial's image it may direct the light through the dial. Fig. 2 is an underplan view. Instead of the usual construction of hour hand, it may be cut out of an opaque disc which revolves in place of the usual hand.
Patent GB-342893-A (GB)
Title: Instrument for drawing curves especially conic sections
IPC: B43L11/02
Filed: 1930-01-31
Abstract: 342,893. Ellipsographs. NAVASCUES, A. G., Alava, Murguia, Spain. Jan. 31, 1930, No. 3417. [A Specification was laid open to inspection under Sect. 91 of the Acts, Feb. 1, 1930.] [Class 97 (iii).] A device for drawing conic sections and similar curves, comprises two graduated rules provided with toothed racks, and a slide carrying pinions which unites the two rules. In the form shown, the rules 2, 11 are united by a slide 4 bearing pinions 7, 6 having axial openings to receive a pencil, chalk or the like. A third slide 3 at rightangles to the rule 11 is provided for use as a directrix when drawing parabolas. The slide 4 is provided with a gauge for indicating the travel of the tracing point.
Patent GB-138644-A (GB)
Title: Method and means for determining the direction of sounds
IPC: F42B39/10
Filed: 1920-02-05
Abstract: 138,644. Hornbostel, E. M., von, and Wertheimer, M. July 6, 1915, [Convention datr]. Locating sounds.-Apparatus for finding the direction of a source of sound, utilizing the natural faculty of the humanears for determining direction, comprises two sound receivers a, Fig. 1. the sound being conveyed to the ears through tubes c. d of equal length. The receivers are mounted on a carrier b which is rotated about a vertical axis until the sound appears to be directly ahead of or behind the observer, the receivers a, b then being equidistant from the source. A telescope z for zeroizing, and a scale r for reading the angular position of the carrier, are provided. The apparatus may be adapted for use with sounds propagated through media other than air. As an alternative to rotation, the lengths of the tubes leading to the ears may be adjusted to differ in length until the sound appears to come from ahead or behind, its true direction being found from the amount of adjustment necessary. Fig. 2 shows sound-receiving funnels m connected with ear-tubes n, o by means of tubes each formed of two parts s, p, telescopically connected, graduations being provided so that the amount of adjustment may be read. Electric receivers with telephone ear-pieces may be used. Specification 138,645 is referred to. According to the Specification as open to inspection under Sect. 91 (3) (a), instead of rotating the carrier b, the observer's stand, such as a vehicle or vessel, may be rotated as a whole. This matter is disclaimed in the Specification as accepted.
Patent GB-347749-A (GB)
Title: Application of photography to the recording of the readings of meters or registers in telephone exchanges
IPC: H04M15/10
Filed: 1930-02-03
Abstract: 347,749. Photographic records of meter readings. BURWOOD, G. F., 16, Dulwich Common, and NICOL, W. E., 149, Broadfield Road, Catford, both in London. Feb. 3, 1930, No. 3581. [Class 98 (i).] Apparatus for photographically recording the readings of meters in telephone exchanges comprises a trolley or chassis 3, Fig. 5, running on a track 1 extending across the meters, and having guide members 4 .. 7 on which the photographic apparatus 8 is slidably mounted, and a track or guide means 12, 14, 15 engaged by driving gear associated with the cameras and distributed so that the whole meter field is explored by the camera or cameras. The track or guide means may be continuous and fixed in relation to the meters, or, alternatively, as in Fig. 5, the track may consist of a traversing section 12 fixed on the trolley chassis 3, and connecting sections 14, 15 outside the meter field a b, c d and with which the traversing section 12 aligns in successive positions of the trolley. In the latter case locking means are provided to interlock the traversing sections 12 with the connecting sections. The driving means described comprises a carriage 9, Figs. 2, 3 and 5 with pairs of wheels 20, 22 and 21, 23 running on opposite sides of the track strip and driven from a shaft 16 about which the camera 8 can pivot. The track may have a return section outside the meter field so that the camera apparatus can return to starting point without reversal of movement. To provide for a continuous feed of film in any case, the film shaft 34, Fig. 7, may be driven by means of a bevel pinion 33 and the wheels 31, 32 which are free on the shaft 34 and drive it always in the same direction by pawl and ratchet gears 31<1>, 321. One or more cameras may be used, the camera 8, Fig. 5, or three cameras 8, 10, 11 being counterpoised. Lamps 35, 36, Fig. 2, on the cameras illuminate the meters, and the shutters may be tripped by spaced tripping devices. Each meter may be separately photographed or groups of meters may be on each photograph according to the field of view of the lens.
Patent GB-980699-A (GB)
Title: Improvements in teeth profiles of rotors for gear pumps of rotary type
IPC: F04C2/08
Filed: 1961-01-31
Abstract: 980,699. Gear pumps. H. IYOI. Jan. 31, 1961, No. 3590/61. Heading F1F. In a gear pump comprising two similar intermeshing gear wheels journalled for rotation in opposite directions on parallel axes, each gear has helical teeth with an advance equal to the pitch, provides continuous driving between the gears and a tooth profile which in the region of its intersection with the rack pitch line is an arc of an ellipse whose major axis is at right angles to the rack pitch line and has a common tangent with the junction of a different curve forming the tooth crown, with the normal to said tangent intersecting said major axis below the rack pitch line and the curve forming the crown being not further spaced from the rack pitch line than a circular arc centred on the intersection of the normal and major axis and having a radius equal to the distance between said intersection and said junction, the gear wheels being designed to avoid undercutting in the gear pump. Fig. 6 shows a section through a rack for forming a gear wheel in a plane perpendicular to the gear wheel axis wherein curve Ks is an arc of an ellipse having its major axis at right angles to rack pitch line Ox and its centre E o  below Ox. K is a circular arc and Kc a connecting circular arc with centre C c  and radius P c C c  merging smoothly with the elliptic arc Ks at P c , l is a straight line parallel to y axis passing through the quarter pitch (2#/n), n being the number of teeth. Thus in a section perpendicular to the teeth of the rack the tooth profile is made up of two elliptical arcs. Specification 555,442 is referred to.
Patent GB-806950-A (GB)
Title: Production of pharmaceutical preparations
Inventor: MELVIN PHILIP ALEXANDER
IPC: C12N7/06
Filed: 1956-02-06
Abstract: A process for the manufacture of material containing antigens, obtained by the use of carcinogenic inactivating agents defined as to mean b -propiolactone or compounds of the formula <FORM:0806950/VI/1> where R is methyl, ethyl and normal or isopropyl, which includes the step of freeze drying in order to reverse excess of the carcinogenic agent.  The material containing antigens is prepared by subjecting infectious micro-organisms to the action of the above inactivating agents, e.g. by subjecting a 20 per cent w/v. suspension of the micro-organism and animal tissue in sterile saline, to b -propiolactone or N-acetylethyleneimine in the form of an aqueous solution in which the concentration of said agent is between 0.005 per cent v/v. and 1 per cent v/v. based on the combined volumes of the, e.g. suspension of micro-organism and the solution of said agent.  Sugars, e.g. sucrose may preferably be added to the material prior to freeze drying, which step is carried out at a low pressure, for example between 0.01 mm. and 0.0001 mm., during a period of several hours, e.g. 24 hours.  The freeze-drying is conveniently carried out in ampoules. Specification 806,949 is referred to.
Patent GB-1531925-A (GB)
Title: Helical antennas
IPC: H01Q11/08
Filed: 1976-01-29
Abstract: 1531925 Aerials J D E S ABREU 29 Jan 1976 [29 Jan 1975] 03638/76 Heading H4A A helical aerial comprises a flat strip helical element 6 formed into the shape of a helix of progressively reducing diameter, the broad surface of which faces along the axis of the helix. Axial support 4 supports the helix via struts 3 and associated reflector 1. Improved matching to a 50# feeder and an increase in gain over prior art systems (Fig. 1, not shown), is stated to be obtained.
Patent GB-1186509-A (GB)
Title: 2-(5-Carboxypentyl)-4,6-Dimethoxybenzoic Acid and its Preparation
IPC: H01B3/42
Filed: 1968-01-24
Abstract: 1,186,509. Dimethoxybenzoic acid derivative. COMMERCIAL SOLVENTS CORP. 24 Jan., 1968 [27 Feb., 1967], No. 3649/68. Heading C2C. The invention comprises 2-(5-carboxypentyl)- 4,6-dimethoxyhenzoic acid of the formula and a method of preparing this compound from a compound of the formula by way of intermediates of the formulµ
Patent GB-601244-A (GB)
Title: Improvements in or relating to controllers for lifts
IPC: B66B13/18
Filed: 1946-02-06
Abstract: 601,244. Locking lift doors or gates. COATES, A. F. Feb. 6, 1946, No. 3707. Drawings to Specification. [Class 78 (iii)] Movement of the operating member of a controller mounted in a lift cage first projects an actuating member into engagement with control gear, mounted in the well at each landing, and then carries the actuating member along with it to actuate the control gear for effecting such operations of the lift as unlocking the doors and breaking the drive motor circuit. Mechanism incorporating the invention is described and is the same as that described in Specification 601,240 to which reference is made. Specification 601,242 also is referred to.
Patent GB-1379076-A (GB)
Title: Vehicle frame and body straightening devices
IPC: B21D1/14
Filed: 1972-01-26
Abstract: 1379076 Restoring to shape SAAB-SCANIA AB 26 Jan 1972 [5 Feb 1971] 3724/72 Heading B3Q  A vehicle body and frame straightener comprises a wheeled unit 1 on which a substantially flat bracket is longitudinally movable on one edge, the bracket having abutment surfaces, bearing points &c. for connection to auxiliary straightening devices. As applied to straightening a frame 4, 5 in the horizontal plane, three units 1 are used, the outer ones being reaction units and the centre unit applying the straightening force, by means of hydraulic rams 19 which are preferably single-acting against return springs 22. The rams engage lugs 20 on the bracket 15 which is guided between side plates 7 of the unit, the lugs 20 passing through upper slots 12, and a pin 23 for the return springs engaging lower slots 13. Rollers 16 on the bracket 15 bear on the unit and an upper member 25 attached to the bracket applies force to the frame 4. A roller 17 overlies the front of the bracket. The wheels 29 are carried by levers or lugs 30 on shafts 31 which are turned, to retract the wheels, by pneumatic cylinders 32. In the outer, reaction units 1 the brackets 48 are secured by pins 50 and engage the frame by means of extension members 51. After retracting the wheels, the units 1 are fixed to the floor by pins passing through holes in the base plates 6, U- clamps secured by bolts, or by levers 38 operated by pneumatic cylinders 35 and locked by wedges 40. For operating in the vertical, Fig. 2, the bracket 15 is disconnected from the jacks 19, which are attached to a straightening member 41 connected by a link 42 to the unit. Hooks 53 are attached to the outer, reaction units 1.
Patent GB-870528-A (GB)
Title: Improvements in or relating to pneumatic suspensions for vehicles
IPC: B60G17/015
Filed: 1959-02-03
Abstract: 870,528. Regulating height of road vehicles. FABBRICA ITALIANA MAGNETI MARELLI S.p.A. Feb. 3, 1959 [Feb. 19, 1958; May 19, 1958], No. 3759/59. Class 108(2). A valve 15 controlling the supply of air from a reservoir 6 and a conduit 27 from a compressor (not shown) to a conduit 8 leading to levelling valves (not shown) controlling the supply of air to, and exhaust from, vehicle pneumatic suspension springs, is opened against the action of a spring 15 on energization of a solenoid 13. The latter is in the circuit of the contacts 11 of a relay 10 which is connected across the ignition warning light 9. The relay 10 is thus only energized when the engine of the vehicle is running at minimum power with the battery voltage B+ exceeding that of the dynamo voltage D+. The relay is also in series with contacts 24 which are opened under the action of a spring 19a when the pressure in the conduit 20 leading from the reservoir 6 and acting on a piston 22 drops below a predetermined amount. The solenoid 13 may be operated at will by the driver by closing a switch 16. A release valve 25 is provided in the system and also a valve 26 to permit charging of the system from an external source. In a simpler modification (Fig. 1, not shown) the pressure operated contacts 24 are dispensed with, and the compressor inlet 27 is applied directly to the reservoir 6.