baber/WOPTO huggingface dataset:
Patent GB-193285-A (GB)
Title: Repair links for chains
IPC: F16G15/04
Filed: 1922-03-02
Abstract: 193,285. Clark, L. S. March 2,1922. Hooks, spring, safety, and closed.-A sister-hook for use as a repair link for a chain &c. of the type in which one member is coiled on the medial bar of the other, comprises two identical members 7, 9, having their transverse medial portions 11, 12 twisted together to form a double series of interengaging convolutions. The hooks 7, 8 and 9, 10 of each member may be disposed on opposite sides of the link, so that pivotal movement is permitted, or on the same side, in which case the members must be sprung apart to engage the links of a chain.
Patent GB-724697-A (GB)
Title: Improvements relating to fluid pressure and/or flow responsive electric switches
Inventor: HIGGINS BERTRAM GEORGE
IPC: H01H35/32
Filed: 1953-03-05
Abstract: 724,697. Fluid-actuation of switches. BRITISH THOMSON-HOUSTON CO., Ltd. March 5, 1953, No. 6148/53. Class 38 (5). A switching device adaptable to operate alternatively as a fluid pressure responsive and as a flow responsive device comprises two substantially identical bellows 3, 4 mounted on opposite sides of a fixed block 25, and bearing at their outer ends 32, 33 on parts 19, 20 of a lever 6 pivoted to the block at 7. The lever 66 carries adjustable operating screws co-operating with a pair of micro-switches 5 carried by the block 2. The latter has a through bore 8 comprising a narrow centre part 9 and enlarged, threaded end parts 10, 11, for connection to external pipes. When the device is to be flow responsive, a valve plunger 34 is adjustably screwed into a bore 12 in the block, the bellows being connected through pipes 16, 17 to opposite sides of the bore 12. When the device is to be pressure-operated, the plunger 34 is withdrawn, a sealing plug is inserted in bore 12 and the plunger 34 is re-inserted, thereby closing the passage 9 and subjecting the ends of pipes 16, 17 to different pressure sources. Specification 543,922 is referred to.
Patent GB-127621-A (GB)
Title: Improvements in Chains especially applicable for Holding the Cartridges of Machine Guns.
Inventor: HOTHAM FREDERICK WILLIAM BARON
IPC: F42B39/08
Filed: 1917-05-01
Abstract: 127,621. Hotham, Frederick William, Baron, and Eastwick, J. May 1, 1917. Cartridge belts.-Links formed by bending strips of sheet metal have holes A, B formed therein, and are connected together by engaging flanges E around the holes A in the holes B of the next link. The cartridges are lodged in the holes A, and spring tongues L, M formed in the links grip the cartridges. Bent lugs G on the flanges E prevent the links from coming apart, and, in assembling the links, they are turned relatively through a large angle until the lugs G can be passed through slots I opening out of the holes B. Kinks or corrugations N are provided to enable the feed mechanism of present machine guns to be used. The cross-bars of the links may be bent to engage the cartridges instead of forming the tongues M in them.
Patent GB-491560-A (GB)
Title: Improvements in or relating to moulded concrete and the like blocks and the manufacture thereof
IPC: E04B2/28
Filed: 1937-03-02
Abstract: 491,560. Moulding concrete &c. blocks. WILSON, J. M. March 2, 1937, No. 6173. [Class 87 (ii)] [Also in Group X] Concrete or like wall blocks comprise spaced mouldings 1, 2 connected by tie members 14, Fig. 11, embedded in them during moulding, the tie members being of strip form and so arranged that when the block is positioned the tie members rise in substantially vertical planes from a lower level at the outer-wall moulding to a higher level at the inner-wall moulding. The tie members thus cannot conduct moisture to the inner wall and cannot obstruct the vertical passage between the mouldings. The tie members may be strips of asbestos cement or other moulded synthetic substance. The blocks may be moulded by forming one wall 1 at the bottom 7 of a mould, Fig. 14. The tie members are inserted in the wall in an upwardly-projecting position and a false bottom 13 is placed above the wall 1, but below the top of the tie members 14, which pass between the bottoms 13. The second wall 2 is then formed on the false bottom 13. The mould may be supported on bearers 3 on walls 4 and comprises removable partitions 5, 9 having grooved connections and held together by wedges between the outer partitions and brackets fixed on the bearers. The false bottoms are supported by fillets on the partitions 5. The blocks may be shaped to provide ashlars, rybats, lintels, corners C, Fig. 6, or sills F, Fig. 11. The outer wall of the sill may have inclined faces formed by inclining the bottoms 13 and by an upper shaping board. For moulding corners, a U- shaped metal member 19, Fig. 15, is placed in the mould, the wall 1 is formed between the member 19 and a partition 9, the tie members 14 are positioned and a further tie member 20 is passed through a slot 21 in the member 19 and the wall 2 is formed as a corner on the false bottom 13 and about the member 19. The U-shaped member may be in two parts forming a closed slot about the tie member 20. The blocks may be faced on one or both sides. Specification 388,375 is referred to. According to the Provisional Specification the tie members may be thin metal strips which may be twisted intermediately and have fish tail ends or the lower edge thereof may be notched to prevent conduction of moisture.
Patent GB-981190-A (GB)
Title: Metal-containing reactive dyestuffs
Inventor: STEINEMANN WILLY
IPC: C09B62/018
Filed: 1961-02-20
Abstract: The invention comprises metal complexes of dyes of formula <FORM:0981190/C4-C5/1> where R1-X is the residue of a diazo component of the benzene series, X is OH or COOH ortho to the azo group, R2 is an arylene radicle which may be substituted and Y is a group capable of forming a chemical linkage with the substrate. The dyes are made, in conventional fashion, by introducing residue Y into the corresponding metal-containing amino formazone dye obtained as in Specification 961,302. Illustrative of specified compounds from which Y may be derived are chloracetic, b -bromopropionic, acrylic, a -bromacrylic, b ,b -dichloracrylic, trichloracrylic, a -bromocrotonic, maleic, dibromofumaric and dichlorosuccinic acids, monofumaric acid esters, tetrameric chlorocyan, cyanuric chloride, compounds of formula  <FORM:0981190/C4-C5/2> where Hal is Cl or Br and Z is the residue of a primary or secondary aliphatic, alicyclic, aromatic or heterocyclic amine, hydroxy compound or thiol, especially aniline and its alkyl or sulphonic acid or carboxylic acid derivatives, or of lower mono- or dialkyl amines or the residue of ammonia; also 2,4,6-trichloro- and tribromo-pyrimidines and their 5-substituted derivatives, e.g. 5-methyl, -ethyl, carboxylicor sulphonic-acid amides, which may be N-substituted, carboxylic acid methyl ester, benzoyl, allyl, carboxymethyl and a methylene group between two piperidine nuclei; 2,4,5,6,-tetrachloro - pyrimidine, 2,6 - dibromopyrimidine -4-carboxylic acid ethyl ester, 2,4,5-trichloro- and 2,6-dibromo-pyrimidines, and 2,6 - dichloro - 4 - trichloromethylpyrimidine or a di-(aryloxy)cyamine halide. Copper, nickel and cobalt are preferred metals, the cobalt dyes being 1,1-complexes.  The dyes colour animal fibres, e.g. wool and silk, synthetic polyamide fibres, e.g. nylon, leather, cellulosic fibres, e.g. cotton and linen and regenerated cellulose fibres, e.g. viscose and cuprammonium rayon.  Animal and synthetic polyamide fibres are preferably coloured in acid, neutral or weakly alkaline media, and cellulosic fibres in alkaline media. Examples are provided of the preparation of the dyes and their use in colouring processes to provide a variety of shades.
Patent GB-231309-A (GB)
Title: Doors or closure flaps for coal-boxes, cupboards, and the like
IPC: F24B15/04
Filed: 1924-03-11
Abstract: 231,309. Ramsay, J. G. March 11, 1924. Cabinets; coal-boxes.-A cabinet or caal-box F with a door A hinged at the bottom B and adapted to be kept closed by the weight of the contents, is provided on the inner side of the door with inwardly-extending arms C, on which rests a box or container E for the contents of the cabinet. Wheels D on the inner container E fit or rest on the arms C. The container E has an upwardlyprojecting handle G, at the top J of which is pivoted a flap H serving as a handle or as a support for the container when drawn out from the cabinet.
Patent GB-371531-A (GB)
Title: Improvements in and relating to vacuum cleaners
IPC: A47L9/14
Filed: 1931-02-27
Abstract: 371,531. Vacuum, cleaners. VORWERK & CO., 23, M³hlenweg, Barmen, Germany. Feb. 27, 1931, No. 6255. Convention date, May 24, 1930. [Class 8 (i).] The casing containing the electric motor d and fan e is provided with a handle forming a connecting socket f for the dust-bag g; the casing is in three parts ; the uppermost part forms a cover, the middle part supports the motor and fans and the connection f, while the lower part is rotatably mounted and receives the suction pipe h and interchangeable nozzle k. The Specification as open to inspection under Sect. 91 (3) (a) states that the dust-bag may be contained in the hollow handle. This subjectmatter does not appear in the Specification as accepted.
Patent GB-1533162-A (GB)
Title: Lamps
IPC: C09K11/77
Filed: 1976-02-18
Abstract: 1533162 Luminescent materials and uses thereof MATSUSHITA ELECTRONICS CORP 18 Feb 1976 [19 Feb 1975] 6284/76 Heading C4S A high p Hg vapour lamp comprises an arc tube 1 capable of emitting visible and u.v. light, an outer tube 23 and phosphor coating 24 consisting of two phosphors, a red emitting one of europium activated yttrium vanadate or europium activated yttrium vanadate phosphate, and a blue-green emitting one of bivalent europium and bivalent manganese activated phosphor of formula where 0À03#x#0À4, 0À01#y#0À6 and 12#z#20. Optionally 12#z#16 and the vanadate phosphor content is 20 to 95% by wt. The blue green phosphor emitting at 436 to 546 nm. produces the desired colour rendition at the required colour temperatures. Variation of the x/y ratio changes the colour temperature components at 450 nm. and 5/5 nm. of the Eu<SP>2+</SP> and Mn<SP>2+</SP> respectively. Emission characteristics for specified phosphors are disclosed (Fig. 2, not shown), variations with temperature discussed w.r.t. Fig. 3 (not shown), with Al content (Fig. 5, not shown), and diffraction analyses discussed w.r.t. Fig. 6 (not shown) indicate a single phase, α-Al 2 O 3  phase or #-Al 2 O 3  phase according to the z value. Colour temperature variations with relative concentrations are disclosed for specific phosphors (Fig. 7, not shown), and phosphor coverage/cm.<SP>2</SP> given. The examples specify further phosphors, colour indices and application with nitrocellulose butyl acetate solution. The spectral lamp distribution may be as in Fig. 8 (not shown). The inner arc tube contains Hg and an inert gas such as Ar, while the outer envelope contains nitrogen.
Patent GB-123225-A (GB)
Title: Improvements in or relating to the Construction of Hauling Up Slipways for Vessels.
IPC: B63B9/00
Filed: 1918-04-13
Abstract: 123,225. Vesian, J. S. E. de, and Mouchel & Partners, L. G. April 13, 1918. Slips.-A hauling-up slip-way comprises reinforced-concrete frames adapted to be placed on piles. As shown, the frames comprise longitudinal beams b, c, d united by ties &c. e. Channels or recesses are formed on the under side of the longitudinal beams to house the heads of the piles a. Adjacent frames are connected by locking-tongues f<1>, grout being inserted after positioning the frames.
Patent GB-1536068-A (GB)
Title: Aerial delivery wedge
IPC: B64D1/08
Filed: 1977-02-16
Abstract: 1536068 Load dropping devices CANADA MINISTER OF NATIONAL DEFENCE 16 Feb 1977 [11 March 1976] 06373/77 Heading F3C [Also in Division B7] A load dropping device for attachment to the floor of an aircraft frame has a cargo carrying platform 5 pivoted to base members 3, 4 at one end, the other end being lifted through lifting means 18 (e.g. screw jack, hydraulic cylinder), the platform having friction reducing means (e.g. rollers 14) to facilitate sliding movement of the cargo.
Patent GB-954084-A (GB)
Title: Improvements in or relating to sand binding agents
IPC: C08G16/02
Filed: 1961-02-21
Abstract: Modified urea-formaldehyde resins are prepared by heating a mixture comprising formaldehyde, urea and furfuryl alcohol, the molar ratio of formaldehyde to urea being greater than 2:1 and the molar ratio of furfuryl alcohol to urea being from 0.1: 1 to 1.7:1, under alkaline conditions to form an acid-hardenable resin. The acid curing catalyst used in the examples is a mixture of water, urea and ammonium chloride. The resins are used to bind sand in the manufacture of foundry cores and moulds.
Patent GB-486987-A (GB)
Title: Improvements in buttons
IPC: A44B1/24
Filed: 1937-03-04
Abstract: 486,987. Moulded buttons. MOULDED PRODUCTS, Ltd., and IRELAND, H. W. F. March 4, 1937, No. 6410. [Class 43] A button comprises a front portion 10 of moulded material such as synthetic resin in the back of which is moulded a tubular anchorage member 14, into which is inserted an attachment unit consisting of a metal cup 18 carrying a U-shaped shank 24 loosely in holes 23, the outer edge of the anchorage member then being turned down to secure the cup. The cup may have a notch 22 engaging with a corresponding projection 21 on the shoulder 20 of the moulded portion to prevent turning movement. In place of the U-shank, a single stem with an eye may be used. In a modification, (not shown), the rear part of the anchorage member 14 is contracted and an exterior groove is formed on it after the moulding operation, and the edge of the member 18 is spun into this groove.
Patent GB-713213-A (GB)
Title: Improvements relating to steering heads for steerable wheels of vehicles
IPC: B62D7/18
Filed: 1952-03-12
Abstract: 713,213. Steering vehicles. DAIMLER-BENZ AKT.-GES. March 12, 1952 [March 12, 1951], No. 6454/52. Class 79(5) A steering head for a vehicle steerable wheel comprises a substantially vertical tube, which is pivotally connected to a vehicle axle or to wheel-guiding members and is swingable about a king pin axis, and a stub axle 'which embrances and grips the tube and is made in one piece with a steering arm. The steering head comprises the tube 1 and the stub-axle 2 which is forged and is hot-pressed, cold-pressed or shrunk on to the tube 1. The member 2 comprises an axle portion 3, a middle portion 4 embracing and gripping the tube 1 and the steering arm 5.
Patent GB-234929-A (GB)
Title: Improvements relating to the manufacture of water-gas
IPC: C10J1/213
Filed: 1924-03-13
Abstract: 234,929. Glasgow, A. G. March 13, 1924. Producers.-In the manufacture of water gas, steam is superheated by passage in the reverse direction through the usual regenerative chambers and is used for an " up run " by being passed into the bottom of the regenerator, the resulting gases passing off at the top of the regenerator to a holder without passage through the regenerative chambers. During the " down run," the gases obtained are led off through a carburettor and superheater. The plant comprises a generator a, a carburettor b and a superheater c, the top and bottom of the generator being connected to the top of the carburettor by valved pipes e, f. Steam to be superheated is admitted by a pipe i, while steam already superheated may be admitted by pipes g, h. The water gas is led off by a valved exit m or when carburetted in the usual manner through a pipe k which is provided with a valve o kept closed during the reverse runs. Specifications 11130/97, 11131/97, 116,445, and 120,853, [both in Class 51 (ii), Furnaces and kilns for applying &c.], are referred to.
Patent GB-525775-A (GB)
Title: A process for producing hydrocarbon fractions
IPC: C10G21/00
Filed: 1939-02-28
Abstract: 525,775. Fractioning hydrocarbons by solvents. NAAMLOOZE VENNOOTSCHAP DE BATAAFSCHE PETROLEUM MAATSCHAPPIJ. Feb. 28, 1939, No. 6602. Convention date, March 8, 1938. [Class 91] In the separation of hydrocarbon mixtures free or freed from paraffin wax into highly aromatic and highly paraffinic and/or naphthenic fractions by cooling in presence of a solvent or a mixture of solvents which is selective for aromatics, the solvent, the quantity thereof, and the degree of cooling are such as to ensure separation of the hydrocarbons that remain liquid into at least 2 liquid phases ; the solid or filterable fraction is then removed e.g. by filtration, preferably with some or all of the liquid residue phase. Solvents specified are esters, ketones, alcohols, furfural, #-picoline, or mixtures thereof ; the dissolving capacity thereof may be increased by adding toluene, chloroform, ethers, or carbon-disulphide. In an example, 1 litre of Venezuelan distillate is dewaxed at -15‹C. in presence of 2.4 litres of ethyl acetate and 0.6 litre of toluene, the cake washed with a mixture of 0.8 litre of ethyl acetate and 0.2 litre of toluene, and the mixture of filtered oil, solvent, and washing liquor cooled to -50‹C. whereby crystals and 2 liquid phases are formed ; the liquid solvent phase is decanted and the crystallized mass and liquid residue melted, diluted with 3.20 litres of ethyl acetate and cooled again to -50‹C. to effect further separation. French Specifications 805,512 and 823,564 are referred to.
Patent GB-1132807-A (GB)
Title: Improvements in or relating to synchronous clamp circuits for d.c. restoration
Inventor: HUNTER IAN
IPC: H04N5/18
Filed: 1967-02-10
Abstract: 1,132,807. Television. MARCONI CO. Ltd. 28 Nov., 1967 [10 Feb., 1967], No. 6616/67. Heading H4F. In a D.C. restoring synchronous clamp circuit arrangement in which clamping is effected by applying an operating pulse to render conductive the diodes of at least one diode bridge, the pulse is applied to the bridge through at least one gate which in the absence of the pulse is closed but which is opened during the presence of the pulse. In Fig. 2, a television video signal from generator 1 is A.C. coupled through capacitor 3 to a load 4 and the ends of one diagonal of a diode bridge 5, 6, 7 and 8 is connected across the load. This diode bridge is arranged to clamp each back porch to black level by means of operating pulses derived in pulse source 11 from line synchronizing pulses and applied through transformer 13 to the ends of the other diagonal of the bridge to drive the diodes conductive. One end 131 of the transformer secondary is connected directly to one end of the bridge diagonal, and the other end 131 is connected to the other end of the diagonal through a resistance 10 and a normally closed gating transistor 14 the base of which is connected to an appropriate tapping 133 on the secondary so chosen that the gate is opened, i.e. the transistor rendered conductive, when the operating pulse arrives. The potential to which clamping is effected is determined by battery 15. A resistance 16 is connected across the transformer secondary to load it and provide damping after the end of a pulse from transistor 14 cuts off and the gate is closed. The fact that the gate is closed except when the operating pulses are present produces the result that voltage excursions in the signals to be clamped and occurring when the operating pulses are not present do not cause incorrect clamping action. In a second embodiment, Fig. 3, not shown, a further gating transistor (PNP) is connected in the other of the two leads through which the operating pulses are applied across the appropriate bridge diagonal. In a third embodiment, Fig. 4, two diode bridges are connected as shown, and actuated by pulses from the secondaries of transformer 13, each secondary feeding into the corresponding end of its appropriate bridge through a gating transistor 14 or 14A and a resistor 10 or 10A. The bridge 5A to 8A is gated to compare the potential across the load with the desired potential and any error is amplified by a differential wide band D.C. amplifier 17 which is connected as shown, to reduce the error.
Patent GB-563450-A (GB)
Title: Improvements in and relating to synchronizing indicators for alternating current systems
IPC: G01R23/02
Filed: 1943-04-28
Abstract: 563,450. Synchronism indicators. BRITISH THOMSON-HOUSTON CO., Ltd. April 28, 1943, No. 6695. Convention date, May 2, 1942. [Class 37] Apparatus for indicating the phase relationship between two three - phase alternating current systems comprises means for rectifying the vector sum of the voltages from one pair of different phases of the two systems, other means for rectifying the vector sum of the voltages of another pair of different phases of the two systems, a zero centre direct current measuring instrument for indicating the direction and magnitude of the difference, if any, in the rectified voltages, and a phase responsive relay for de-energizing the instrument when the phase relation between the systems is between about 120 and 240 degrees out of phase. Fig. 1 shows a circuit arrangement for indicating synchronism between two threephase systems A, B to enable them to be connected together by switch 10. Voltage transformer 13 is connected across phases 1, 3 of system A and produces in secondary windings 4, 5 a voltage A13 proportional to the voltage across phases 1, 3. Transformers 14, 15 are connected across phases 1, 2 and 2, 3 of system B to produce proportional voltages B12, B23 in windings 6, 7 and 8, 9. Voltages A13 and B12 from windings 4, 6 are combined and rectified in bridge 16 while voltages A13 and B23 are combined and rectified in bridge 17. The outputs from the bridges are connected in opposition in series with one or more zero centre direct current voltmeters 11. Vector diagrams are provided which show that the voltage applied to the instruments 11 is zero when the phase difference is zero or 180 degrees. This ambiguity is removed by de-energizing the instrument when the phase difference is between approximately 120-240 degrees by means of a relay 22 energized by the vector sum of voltages A12, B12 and B23 from coils 4, 7 and 8. This voltage is zero for 180 degrees phase difference and maximum at synchronism, and the relay is set so as to open in the range 120-240 degrees. The operator then distinguishes synchronism by the manner in which the pointer approaches zero. In the region of synchronism the pointer passes slowly through zero, while near 180 degrees out of phase the pointer jerks suddenly to zero and remains for a period before suddenly reversing its direction. The direction in which the pointer slowly approaches zero tells . the operator which system is leading in frequency, and the side of zero on which the pointer comes to rest, indicates which system is leading in phase.
Patent GB-1063435-A (GB)
Title: Production of vinyl esters
IPC: C07C69/01
Filed: 1965-02-17
Abstract: Vinyl acetate is prepared in a stepwise process in which (A) ethylene is reacted with a recycled solution comprising an acetic acid solution of a palladium II salt catalyst, an ionizable metal acetate, a cupric salt oxidizing agent and water, the latter in a proportion of 1 to 20% by weight based on the weight of solvent components, whereby at least part of the cupric salt is reduced to cuprous salt, and vinyl acetate and acetaldehyde are formed (B) removing at least part of the vinyl acetate, (C) oxidizing cuprous salt to cupric, (D) oxidizing acetaldehyde to acetic acid, (E) removing sufficient water from the working solution to maintain production of the desired controlled yield of acetaldehyde which is sufficient to provide the acetic acid requirements after the initial change of working solution, and finally (F) employing the reoxidized working solution and acetic acid for further vinyl acetate synthesis. Equimolar proportions of vinyl acetate and acetaldehyde are preferably obtained by the adjustment of the water content and a flow diagram illustrates suitable apparatus. Palladium chloride, bromide and acetate, and the alkali metal chloro- and bromopalladites may be used, the metal acetate may be cupric, alkali metal, and alkaline earth acetates or ferric, stannic, nickel and cobalt acetates.