baber/WOPTO huggingface dataset:
Patent GB-1008630-A (GB)
Title: Improvements in or relating to the preparation of thermoplastic polycarbonates
Inventor: CONIX ANDRE JAN
IPC: C08G64/06
Filed: 1961-01-27
Abstract: New polycarbonates contain the residues of two or more isomeric bis-(hydroxyphenyl)-methanes which may have inert substituents on the phenylene rings.  Preferably the isomeric mixture comprises 40-80% of p,p1-di(hydroxyphenyl) -methane, 20-65% of o,p1-di-(hydroxyphenyl)-methane and 0-10% of o,o1-di-(hydrophenyl)-methane. Such a mixture obtained by condensing phenol with formaldehyde in acid medium.  The polycarbonates may also contain the residue of (a) other bis-phenols, e.g. bis-phenol A, (b) thiophazene, or (c) diacid halides of dicarboxylic acids, disulphonic acids or monocarboxysulphonic acids.  They are soluble in organic solvents (e.g. halogenated aliphatic hydrocarbons or tetrahydrofurane) but may be rendered insoluble by heating in an oxygen-containing atmosphere at 200-350 DEG  C. whereby they are cross-linked.  The polycarbonates are made by the reaction of aqueous solution metal phenolates of bis-(hydroxyphenyl)-methanes with phosgene and/or with dichloroformates of bis-(hydroxyphenyl)-methanes. Reaction is preferably effected in the presence of an organic liquid which is a solvent or swelling agent for the polycarbonate (e.g. a halogenated aliphatic hydrocarbon or a mixture thereof with benzene or toluene).  Catalysts for the reaction are quaternary ammonium, quaternary phosphonium, quaternary arsonium and tertiary sulphonium compounds.  The polycarbonates are useful in the manufacture of fibres, films, photograph films (e.g. as a film base, an adhesive layer or a subbing layer) or as binders for various purposes.  Specifications 772,627 and 883,619 are referred to.
Patent GB-990782-A (GB)
Title: Improvements in chain assemblies
IPC: B65G17/06
Filed: 1964-01-27
Abstract: 990,782. Conveyer chains. FABER S.A. Jan. 27, 1964 [Jan. 25, 1963], No. 3377/64. Heading B8A. A conveyer chain consists of inner links 7 made of synthetic plastic, outer links in the form of a pair of metal plates 5, 6, and metal pivot pins of which adjacent pins 9, 10 in adjacent inner links are conneted together by split pins 11 or other means which will prevent their relative rotation. Such means may be provided on one side only, conventional pinretaining means being fitted on the other side. The plastic links may have metal reinforcing inserts 13, 14. An endless slat conveyer may be made up from such a chain, the slats 1 being of plastic and each moulded integrally with one of the inner links.
Patent GB-1514281-A (GB)
Title: Low pressure mercury vapour fluorescent electric discharge lamps
IPC: H01J61/32
Filed: 1975-10-24
Abstract: 1514281 Fluorescent lamps CLAUDGEN Ltd 24 Oct 1975 [27 Jan 1975] 3431/75 Heading H1D A low p Hg vapour fluorescent lamp has a filling of Hg with rare gas at a pressure of 3À5 to 20 torr, the ratio of the tube length to internal diameter being > 100:1 and the electrodes of triple coiled or braided filament construction such that not more than 6% of the total input power is dissipated at the electrodes. Dimensions, voltages, currents, lumen output, colour temperature and power values are specified, and the filling preferably comprises 75 to 85% of argon and 15 to 25% Ne (e.g. 150 mg of Hg and 80% Ar and 20% Ne, at 7 torr), the electrodes may be double start helical tertiary form and retain emissive material. Planar convoluted shapes (e.g. serpentine, grid or spiral) may be formed by the envelope which may be accommodated in square, rectangular or circular fitting. The end sections of the envelope may be positioned behind the plane of the convoluted envelope.
Patent GB-676323-A (GB)
Title: Improvements in or relating to frequency modulated radar systems
Inventor: BRANDON PERCY SAMUEL
IPC: G01S13/34
Filed: 1950-02-10
Abstract: 676,323. Radiolocation. MARCONI'SWIRELESS TELEGRAPH CO., Ltd. Sept. 20, 1950 [Feb. 10, 1950], No. 3511/50. Drawings to Specification. Class 40 (vii). In a frequency-modulated radar system of the type using a spectrum analysing receiver and having a P.P.I. or sector cathode-ray tube display indicating both azimuth and range of echo-producing objects, means are provided for subjecting the cathode - ray beam to a " wobbling " deflection in a direction transverse to its direction of linear deflection. The amplitude of the deflecting signal may be made either proportional to the instantaneous radial deflection of the beam so that the " wobble " deflection provided is of constant angular width or proportional to the amplitude of the echo signals being received so that each indication produced indicates by its width the reflecting power of the respective targets. By this means, the " spokiness " of the display occasioned by the necessarily slow, rate of radial deflection in a frequency-modulated radar system is obviated.
Patent GB-901841-A (GB)
Title: Gantry
Inventor: BARNETT SAMUEL RICHARD
IPC: B66C19/02
Filed: 1959-01-30
Abstract: 901,841. Staging for workmen. HEAD, WRIGHTSON & CO. Ltd. Jan. 27, 1960 [Jan. 30, 1959], No. 3511/59. Class 20 (2). A gantry for supporting a working platform comprises a beam built up of similar units 13 supported at each end on a tower 11 of triangular form, the platform being supported on a frame 14 running on the beam. The tower comprises a triangle of two tubes 19 and a bar 16 and bracing tubes 20, 29 and struts 15. The units 13 comprise a rectangular section tubular boom 21 and a square section tubular boom 22 connected by cylindrical struts 25 and having connecting plates 23 at both ends. The frame 14 comprises two open triangles connected by bolts 32 carrying the rollers on which it runs. The gantry runs on castors 12.
Patent GB-123726-A (GB)
Title: Improvements in Metal Disc Wheels and the Method of Manufacturing the same.
IPC: B21D53/26
Filed: 1919-02-13
Abstract: 123,726. Budd Wheel Corporation, (Assignees of Schenck, C.). Feb. 13, 1918, [Convention date]. Disk wheels of the type comprising two disks 7, 8 with spacing members 9 are reinforced at the hub by a hollow casting 11 having integral flanged radial arms 12 passing between the members 9 and supporting the disks. The edge of the central opening of the disk 8 is turned, over a shoulder on the member 11 as shown at 14. The disk 7 is pressed over a shoulder 16 on the periphery of the member 11, and its inner edge is flush with the central opening thereof as shown. The peripheral parts of the disks are bent laterally and radially as at 19, 20, 21 to form a boxlike structure supporting a tyre 27, and transverse bracing members are inserted at intervals. The bracing members consist of a flat base 23, and web 22 which is cut away to take the edges of the disks, and the corners over which the disks are bent are rounded off. The component parts may be secured together by spot welding.
Patent GB-684619-A (GB)
Title: Improvements in or relating to articles for wear
IPC: A43B3/24
Filed: 1950-02-13
Abstract: 684,619. Articles for wear on the feet. DOUGHTY, J. C. Feb. 2, 1951 [Feb. 13, 1960], No. 3663/50. Class 17 (ii). [Also in Group VI] To a peripheral wall 4 of a foot bottom or sole section 1 made of leather, plastic, or other non- textile material, by means of a yarn or thread 14 inserted through holes. 16 therein, is attached, in a readily detachable manner, a knitted instep portion 2 which is selvedged around its periphery by fashioning the wales to prevent edge rupture or laddering. The foot bottom or sole section 1 may comprise a complete foot bottom including heel and a part or the whole of the toe, or any section of the foot bottom minus heel and/or toe, e.g. it may take the form of a medicated pad which may be readily renewed as required. The instep portion 2 may be combined integrally with or attached to a leg portion.
Patent GB-945317-A (GB)
Title: Improvements in monorail beam and vehicle truck
IPC: B61B13/04
Filed: 1961-01-31
Abstract: 945,317. Single rail vehicles. S. H. BING- HAM. Jan. 31, 1961 [April 26, 1960], No. 3698/61. Heading B7L. A monorail vehicle comprises a car body C, Figs. 1 and 2, supported by springs S on a truck frame 18 which straddles an I-section rail 10 from above, the frame having aligned horizontal studs 30, 34 on opposite sides of the rail web 12 and rotatably supporting pneumatically tyred wheels 32, 36, which ride on the upper surfaces of the lower rail flange 16, the frame also carrying a pair of guide wheels e.g. 26, 28, Fig. 2, on each side of the rail and engaging the edge surfaces 14a, 14b of the upper rail flange 14. Instead of the surfaces 14a, 14b being vertical as shown they may converge downwardly and the axes of the guide wheel then similarly converge to raise the centre of application X of the guiding forces and thus increase the lateral stability of the truck. The studs also rotatably support railway wheels 38a, 42a having flanges 40, 44 which can engage the edge surfaces 16a, 16b of the lower flange 16 and rims 38b, 42b engaged with the upper surfaces of the flange 16 in event of the tyres of the wheels 32, 36 becoming deflative.
Patent GB-573150-A (GB)
Title: Improvements in or relating to fuel pumps
IPC: F02M37/04
Filed: 1943-03-08
Abstract: 573,150. Shaft couplings. BEACHAM, T. E. March 8, 1943, No. 3722. [Class 80 (ii)] [Also in Groups XXVI, XXVII and XXIX] A gear-wheel pump 1 for supplying fuel to an internal-combustion engine is coupled to a centrifugal impeller 7, and has a gear 1 keyed to a shaft 5 driven from the engine through a splined end 45 and an Oldham coupling 46, 47. The part 46 has a diametral tongue engaging, the slotted end of the shaft 5, and the part 47 similarly engages the part 46 through a tongue- and-slot connection. Flanges 48 and 49 are pressed apart by a spring against sealing rings 51, 52. The shaft 5 is supported by a steel sleeve 32 running in bronze bushes 33 and 34.
Patent GB-250360-A (GB)
Title: Improvements in and relating to the separation of liquids of different specific gravities
IPC: B01D17/02
Filed: 1925-02-10
Abstract: 250,360. Comyn, B. D., and White, W. A. Feb. 10, 1925. Purifying liquids; separating by gravity; filters with loose filtering-materials.-A process for separating water and oil, part of the latter being in the state of an emulsion, consists in removing the bulk of the oil under gravity and passing the residue of the mixture through a filter of large superficial area and small depth consisting of sand or like granular or pulverulent material. Fig. 1 shows gravity-separation apparatus as described in Specification 227,544 provided at the base with a shallow bed of sand on a layer of felt c on a perforated plate d supported by a grid a. There is a second grid e above and slightly penetrating the sand. The mixture enters a chamber 7 through symmetrically arranged pipes 6. Partial separation takes place in a chamber 8, the water passing to a secondary separating chamber 12, and thence over a wall 16, up an annulus 19, and down an annulus 21 and being finally filtered by the layer of sand. The oil retained by the sand is removed by a reverse flow through the filter and carried away through a perforated pipe f.
Patent GB-909881-A (GB)
Title: Improvements in or relating to liquid infusion guns
Inventor: HALL FREDERICK WILLIAM
IPC: E21F5/18
Filed: 1958-02-05
Abstract: 909,881. Fluid-pressure operated blasting devices. COAL INDUSTRY (PATENTS) Ltd. Feb. 4, 1959 [Feb. 5, 1958], No. 3762/58. Class 9 (1). Apparatus for injecting liquid into coal as in Specification 769,575, comprises two or more interconnected cylinders 2, 3, through which extends a tube 10 carrying co-acting pistons 11, 12, ports 15, 16 in the tube being in communication with the cylinders. In addition, a deformable sleeve 22 is mounted between an abutment 19 carried by the tube and an abutment 9 carried by the cylinder 2, so that when liquid under pressure enters the tube 10, when the apparatus is in a borehole, the liquid passes into the cylinders and moves the pistons and tube relatively to the cylinders and by so doing deforms the sleeve 22 into contact with the borehole.
Patent GB-491912-A (GB)
Title: Improvements in or relating to automatic firearms
IPC: F41A35/02
Filed: 1938-02-07
Abstract: 491,912. Automatic guns. CESKOSLOVENSKA ZBROJOVKA AKCIOVA SPOLECNOST, BRNO. Feb. 7, 1938, No. 3770. Convention date, Feb. 12, 1937. [Classes 92 (ii) and 119] An automatic firearm having a recoiling barrel and a device for cocking the barrel prior to firing, has the barrelcocking means connected to a closure for the casing of the breech mechanism in such manner that whilst normal recoil movements of the barrel are not transmitted to the closure when in its closed position, the barrel is adapted to be cocked by movement of the closure to the open position. The invention is described as applied to a firearm having a barrel 2 and barrel-extension 3, with a tilting breech-block 4 controlled by a gas-operated member 5 which is guided on a fixed rod 7 surrounded by the recoil spring 6. The barrel-extension is hinged at 21 to a cylinder 22 in which works a piston 24 against the opposition of a spring 28, the piston-rod 25 being pivoted about midway between the ends of a cover 10 which is hinged at 12 and has a handle and spring lip 13 adapted to engage a catch 14 on the casing. The cylinder 22 has stops 23 so that when the cover is opened, the barrel is drawn back and cocked by a spring-pressed member 30, through which passes the gas operated member 5. The breechblock is cocked independently by means not shown and is held in cocked position by a sear 8. On actuation of the sear 8 by the trigger mechanism, the member 5 moves forward under the influence of the recoil-spring to close the breech and fire the. gun, an abutment 5<1> on the member 5 actuating the member 30 to release the barrel at such an instant that the barrel is moving forward when discharge takes place. The back-sight 43 is pivoted in the cover and has a toe by which it is held either vertically or folded along the cover by the resilient pressure of the end of the piston-rod 25.
Patent GB-651273-A (GB)
Title: Improvements in or relating to textile yarn
IPC: D02G3/36
Filed: 1948-02-09
Abstract: 651,273. Textile yarn: HAEREM, A. A. Feb. 9, 1948, No. 3775. [A Specification: was laid open to inspection under Sect. 91 of the Acts, Oct. 12, 1948]. '[Class 120(iii)] A textile yarn comprises a core thread upon which are helically wound one ormore outer threads in loose, but closely spaced coils produced by winding the outer threads upon the core thread as well as upon a former which is subsequently removed and so leaves a space between the core thread and the coils, the looseness of the coils being such as to enable warp threads to pass between them when the yarn is woven, and the core thread extending axially within the helical coils of the outer thread or threads and having a rough or adhesive outer surface adapted to make the coils adhere to the core-thread and to prevent them from displacement thereon.
Patent GB-211487-A (GB)
Title: Process of and apparatus for treating hydrocarbons and similar compounds
Filed: 1924-02-13
Abstract: 211,487. Schwarz, A. Feb. 13, 1923, [Convention date]. Hydrocarbons, cracking.-In obtaining gasoline or other saturated hydrocarbons from crude oil, fuel oils, &c. containing unsaturated hydrocarbons the oil is mixed with lower-boiling saturated hydrocarbons, or with hydrocarbon gases, the mixture is vaporized and the composition of the vapour is adjusted by removal of carbon, if necessary, so as to obtain on condensation an increased proportion of low-boiling saturated hydrocarbons. The oil heated to about 500‹ F. is passed through an inlet 6, Fig. 3, and is mixed with hydrocarbon gases, intermediate oils &c. admitted through pipes 7 beneath a rotary agitator 1. The mixture is vaporized in a still fitted with a reflux condenser to return heavy fractions, the vapours are passed through a carbon-removing furnace, and through a condenser. Uncondensed vapours are compressed, and expanded into a condenser, which removes gasoline. Alternatively, crude or fuel oil from a. tank 1, Fig. 5, may be vaporized in a still 2. The vapours are mixed with uncondensed gases from the process and with steam from a boiler 13 and are injected into the mixer 3 through which residual oil from a still 4 passes. The mixture is passed into a still 6 maintained at 500-600‹ F. The vapours pass through a condenser 7 and are redistilled in still 4 which separates gasoline vapours. These vapours pass through a condenser 8, and uncondensed gases pass through a cooler 14 and the mixer 3. The uncondensed gases from the process may be passed through crude oil &c. in a still, and the vapours be passed through a furnace heated to 1000‹ F. to remove carbon. The Specification as open to inspection under Sect. 91 (3) (a) describes also that vapours from a still containing crude or fuel oil may be mixed in a device having opposed spiral passages with vapours from a still containing gas oil or kerosine and the mixed vapours passed into a condenser, the uncondensed gases being added to the mixture of vapours. This subject-matter does not appear in the Specification as accepted.
Patent GB-607512-A (GB)
Title: Improvements in or relating to vee blocks, vee rests and the like
IPC: B01L9/00
Filed: 1946-02-06
Abstract: 607,512. Work-holders. OSBORN, T. W. Feb. 6, 1946, No. 3798. [Class 83 (iii)] [Also in Group XXIII] A vee-block or centre-rest comprises a head a fixed to or swivelling on an adjustable screw column c engaging a threaded bore in a base b, a locking ring-nut g being provided. According to the Provisional Specification a scale may be fitted to the base or column.
Patent GB-848703-A (GB)
Title: A new or improved method of and apparatus for use in the installation of electrical elements in matrixes
Inventor: RIGBY STANLEY JOHN
IPC: H05B3/22
Filed: 1956-02-08
Abstract: 848,703. Electrically heated floors, walls and ceilings. CALIDEC Ltd. Feb. 8, 1957 [Feb. 8, 1956], No. 3905/56. Drawings to Specification. Class 20(2) [Also in Groups XI and XXXVI] An electrically heated floor, wall or ceiling is made by placing a heating element in position and testing the insulation resistance of the element or the floor &c., while thematerial of which the floor is to be composed is put into position, without subjecting the floor &c., to dangerously high currents and voltages. An earthed metal grid is embedded into the first stage of a concrete floor. Insulated cables (acting as a heating element or otherwise) are placed on this layer and the final layer of concrete is applied.
Patent GB-182504-A (GB)
Title: Improved process for the artificial maturing or seasoning of wood
IPC: B27K5/04
Filed: 1921-02-02
Abstract: 182,504. Lyon, G. F. Feb. 2, 1921. Treating with special material; multi-stage processes.- The wood in the form of planks is stacked in an autoclave and subjected alternately and at normal temperature to a slightly reduced atmospheric pressure and to the action of ozonized air, with or without a period of rest betwe,en the stages. The periods of treatment with the reduced pressure and ozonized air may be ten and thirty minutes respectively.
Patent GB-723903-A (GB)
Title: Chlorocyclohexenes and their methods of production
IPC: C07C17/02
Filed: 1952-02-14
Abstract: Chlorocyclohexenes of the formula <FORM:0723903/IV (b)/1> in which X is H or Cl, and stero isomers thereof are prepared by catalytically initiating the addition of chlorine to chlorobenzene or o-dichlorobenzene by means of light, hexaphenylethane, di-t-butyl peroxide or cumene hydroperoxide, while inhibiting the addition at 4 chlorine atoms by means of iodine, a metal iodide, an alkyl or aryl iodide, air, sulphur chloride, mercaptans, an organic sulphide or sulphur, which is present throughout the reaction.  An excess of chlorine may be used.  Examples describe the preparation of (1) 2,3,4,5,6-pentachlorocyclohexene-1 by the action of chlorine in the presence of infra-red light on chlorobenzene containing iodine as inhibitor; and (2) 1,2,3,4,5,6-hexachlorocyclohexene by a similar process using o-dichlorobenzene and iodine.  Other suitable inhibitors are specified.  The pentachlorocyclohexene is a mixture of four stereo isomers which can be separated by crystallization, distillation or chromatographic adsorption over silicic acid.  The hexachlorocyclohexene contains at least two isomers.  The double bond in the products undergoes the normal reactions of a vinyl olefine, a number of such reactions being specified, including addition and oxidation reactions.  The pentachlorocyclohexenes may also be dehydrochlorinated, e.g. by means of alcoholic caustic potash, catalytically, or by heating, to produce a mixture of trichlorobenzenes containing mostly the 1,2,4-isomer.ALSO:2, 3, 4, 5, 6-Pentachlorocyclohexene-1 and 1, 2, 3, 4, 5, 6-hexachlorocyclohexene-1 and stereo isomers thereof (see Group IV (b)) when adadmixed with a carrier, e.g., when dispersed in water, are effective fungicides and insecticides, and may be used for the treatment of plants.  Dispersing agents such as an alkyl aryl polyether alcohol may also be present.  Compositions may take the form of a lanolin paste.
Patent GB-607578-A (GB)
Title: Improvements in or relating to stop-motion attachments
IPC: G05G15/00
Filed: 1946-02-08
Abstract: 607,578. Shearing. VINTON, A. S. Feb. 8, 1946, No. 4057. [Class 83 (iv)] [Also in Group XVI] A stop motion device for a press comprises a spring-pressed slide 10 with roller 12 engaging the edge of the work-piece 6. When the strip fails the roller 12 moves inwards to actuate a clutch lever 17 through a lever 16 to stop the press.
Patent GB-935663-A (GB)
Title: Improvements relating to automatic control systems especially for machine tools
Inventor: TYZACK DONALD ERNEST
IPC: G05B19/33
Filed: 1961-02-03
Abstract: 935,663. Numerical control systems. ELECTRIC & MUSICAL INDUSTRIES Ltd. Feb. 1, 1962 [Feb. 3, 1961], No. 4077/61. Addition to 906,271. Drawings to Specification. Class 38 (6). In a control system for positioning a machinetool in accordance with recorded binary pulse code signals, in which the command signal corresponding to the most significant digit is automatically cancelled by the corresponding movement of the work-table as described in the parent Specification, the potential divider on which the most significant digit is set is modified to represent angular dimensions instead of linear. Four of the existing ten tappings are used, and an auxiliary winding injects a compensating voltage so that these tappings are effectively 100 degrees apart.
Patent GB-524790-A (GB)
Title: Improvements in combined buffing and draw-gear for railway vehicles
IPC: B61G9/06
Filed: 1939-02-07
Abstract: 524,790. Combined buffing and draw-gear for vehicles. WAUGH EQUIPMENT CO. Feb. 7, 1939, No. 4078. Convention date, Feb. 17, 1938. [Class 103 (v)] In a combined buffing and draw-gear for railway vehicles of the kind in which separate springs 21, 21a of the compound rubber and metal plate type are disposed in tandem and adapted respectively to absorb the draught and buffing shocks, the coupler yoke 15 is arranged to embrace only the forward set of springs 21, which have a smaller capacity than the rear set of springs 21a. As shown the set of springs 21 comprises a number of metal plates 22 with three annuli 23, Fig. 3, of rubber projecting on either side thereof, such compound plates being spaced apart by additional metal plates 24. The springs 21a are of similar construction, but have additional bars 29a of rubber to increase the capacity thereof, while a larger number of unit plates 27 are assembled together whereby the gear provides a larger travel as well as greater capacity in buffing than in draught. Specification 496,646 is referred to.