baber/WOPTO huggingface dataset:
Patent GB-1276783-A (GB)
Title: Stabilisation of 1,1,1,-trichloroethane
Inventor: TIPPING JAMES WILLIAM
IPC: C11D7/50
Filed: 1970-03-31
Abstract: 1276783 Stabilization of 1,1,1-trichloroethane IMPERIAL CHEMICAL INDUSTRIES Ltd 19 April 1971 [31 March 1970] 15084/70 Heading C2C [Also in Division C5] 1,1,1-Trichloroethane is stabilized by 0À1 to 10À0% by wt. of a mixture of nitromethane and one or more nitrogen heterocyclic compounds selected from pyridine, quinoline, pyrrole, pyrazine, pyridazine and pyrimidine. The heterocyclic compound is present in quantities of 0À001 to 0À5% by wt. of the 1,1,1-trichloroethane. Optional additional stabilizers are nitroethane, nitropropane, isopropyl nitrate, dimethoxyethane, dioxane, acetonitrile, aliphatic epoxides of 4 to 6 C atoms and N-methyl pyrrole.
Patent GB-1555871-A (GB)
Title: Roller assemble and sliding closure panel assemble
IPC: E06B9/52
Filed: 1977-04-12
Abstract: A sliding closure panel assembly which is movable along a horizontal track comprises a horizontal bottom member having a plurality of open areas extending laterally therethrough and spaced along the length thereof. A plurality of roller assemblies are mounted in a respective one of the open areas. Each of the roller assemblies includes a hollow frame rotatably carrying a roller and having a pair of opposed side walls and a pair of end walls interconnecting the side walls at their respective opposite ends. Each of the end walls has a notch of U-shaped contour in one edge. The periphery of the roller extends outwardly beyond one edge of each of the opposed side walls remote from the notches in the end walls for rolling engagement with a horizontal flat track surface. When the roller assembly is inverted, the roller is engageable with a horizontal vertical flange or rail with the pair of notches loosely receiving the flange or rail for positively guiding the sliding movement of the closure panel assembly therealong.
Patent GB-506224-A (GB)
Title: Improvements in and relating to colour forming developers and processes of colour development
IPC: G03C7/34
Filed: 1938-05-23
Abstract: 506,224. Colour -photography. CEVAERT PHOTO-PRODUCTEN N.V., MERCKX, P. L. J. R., and KORBER, W. K. A. May 23, 1838. No. 15383. [Class 98 (ii)] A colour forming developer comprises an aromatic amino developing agent and a colour former consisting of a derivative of diphenylmethane or phenyhiaphthyhnethane having the general formula X-CH2-X<1>, where X is a phenyl residue with one hydroxyl group in ortho or para position to CH2 and in which at least two of the remaining hydrogen atoms in the nucleus are replaced by halogens (chlorine or bromine) and where X' is a phenyl or naphthyl residue with one hydroxyl-group in the ortho or para position to CH2 and in which the remaining hydrogen atoms of the phenyl or naphthyl residue can be substituted or not by halogens, alkyl, aryl, aralkyl, alkoxy, amino, or nitro groups and in which, in the case of a phenyl residue or the ring of a naphfhyl residue, which ring already contains an OH- group in the para position to the CH<2>, one or more of the remaining hydrogen atoms may be replaced by the corresponding number of hydroxyl groups. Blue or blue-green colours are produced. Examples of colour formers are 4-(2<1>-hydroxy-3<1> : 5<1>-dibrombenzyl)-6-brom-2- methylphenol, 4 - (2<1> - hydroxy - 3<1> : 5<1>- dibrom- .benzyl) -alpha - naphthol, 4 - (4' - hydroxy - 3<1> : 5<1>- dibrombenzyl)-m-cresol, 4-(2<1>-hydroxy-3<1> : 5<1>- dibrombenzyl) - 3 - methyl - 6 - isopropylphenol, 4-(2<1>-hydroxy-3 : 5<1>-dibrombenzyl)-3-methyl-6- bromphenol, 4 - (2<1> - hydroxy - 3<1> : 5<1> - dibrombenzyl) - 1 : 3 - dihydroxybenzene, and 4 - (2<1>- hydroxy - 3<1>: 5<1> - dibrombenzyl) - 2 - methoxyphenol. The aromatic amino developing agents include mono-, di-, and tri-amino aryl compounds, for example aminophenols and aminocresols and their halogen derivatives, aminonaphthols, and aromatic ortho and , para diamines such as p-phenylenediamine and derivatives substituted in the amino group or in the ring or in both, for example diethyl-pphenylenediamine; monoethyl - p - phenylenediamine, dimethyl-p-phenylenediamine, and 3- amino - 6 - dimethylaminotoluene. The hydrochlorides or-sulphates of these compounds may be used. The colour formers may be in the developing solution, and may be dissolved in organic solvents such as acetone, or may be added to the emulsion before or after coating. Developirig formulµ are given. The material may comprise plates, films or paper coated with gelatine or other silver halide emulsion, and the emulsions may be coated on one or both sides of the support. The developed silver may be removed by a bath containing potassium ferricyanide and sodium thiosulphate.
Patent GB-831014-A (GB)
Title: A combined ignition and electric lighting switch for motor vehicles
Inventor: HODGETTS FREDERICK JOSEPH
IPC: H01H27/06
Filed: 1957-05-16
Abstract: 831,014. Mechanical switches, without quick action. WILMOT-BREEDEN Ltd. May 9, 1958 [May 16, 1957], No. 15550/57. Class 38 (5). A combined ignition and lighting switch for motor vehicles comprises a metal housing 10 having an insulating base 11 secured by projections 12 in bayonet slots. In the base are embedded fixed contacts 13, 14 angularly-spaced in concentric outer and inner rows, certain of the contacts being interconnected. Angularlymovable contacts 20, 25 have projections 21, 26 which engage either recessed ends of fixed contacts 13, 14 or recesses in the base 11. The contacts 20, 25 are rotated by insulating-blocks 22, 27 by means of tongues 23, 25a received in notches in the blocks, the blocks and their associated contacts being separated by springs 24, 28. On the housing 10 is mounted an angularly-movable finger-piece 29 with a boss 30, to which is secured an annular metal ring 31 with a flange 32 engaging an attachment plate 33 secured to the housing 10. The block 22 is rotated by the finger-piece 29 by means of tongues 34 (Fig. 6, not shown) which extend from the ring 31 through arcuate slots 35 in the housing 10 to engage notches in the block 22. The angular spacing and size of the tongues 23, 25a, and 34 (not shown), is such as to prevent their engagement with their associated receiving notches, except at one angular setting. Within the boss 30 is mounted a lock 36 operable by a key 37 and having an extension 38 engaging a hole in the block 27, so that angular movement of the lock 36 rotates the block 27. This movement is limited to 90 degrees by a shoulder 39 (Fig. 6, not shown) on the central hole in the housing 10, through which the part 38 extends.
Patent GB-383904-A (GB)
Title: The manufacture of artificial masses
IPC: C08L91/00
Filed: 1932-06-01
Abstract: Hard compositions having porcelain-like properties are made by incorporating finely divided water-insoluble fillers in wax-like chlorinated naphthalenes.  Examples of suitable fillers are talcum, kaolin, cryolite, silicic acid gel, aluminium, carbon, quartz, magnesia, and pigments such as chalk, heavy spar, iron oxide, cadmium sulphide, lithopone, zinc oxide, chromium oxide, white lead, and titanium dioxide.  The amount of filler is usually between 20-30 per cent by weight of the chloronaphthalene, but may be up to about 50 per cent.  In an example, 80 parts of chloronaphthalene containing 50 per cent of chlorine, and wax-like at room temperature, are mixed at 120 DEG  C. with 20 parts of talcum.  Specifications 309,421, [Class 22, Cements &c.], and 340,041 are referred to.
Patent GB-612276-A (GB)
Title: A measuring device for twin tyres
IPC: G01B5/255
Filed: 1946-05-23
Abstract: 612,276. Linear-dimension gauges. DUNLOP RUBBER CO., Ltd., GEORGE, A.. H., and HARDMAN, J. H. May 23, 1946. No. 15576. [Class 106 (ii)] A twin tyre measuring device comprises an L-shaped member having a bridging arm and an alignment arm at right angles to each other and two tyre contacting members on the bridging arm. The alignment arm 1 is placed beside a wheel 2 and the bridging arm 3 which is adjustably mounted in a clamp 5 is moved so that one of the contact members 4 engages the tread of one of the type 2a. The other contact member 7 is then adjusted on the arm 3 till a graduated rod 8 is over the tyre 2. The rod 8 is then brought into contact with the tyre. The graduations in the rod 8 pass a reference mark 9a on the mounting so that the difference in radii of the two tyres may be determined. In modifications, the member 4 may be slidable along the bridging arm 3 which in turn is fixed to the alignment arm. In a further modification, an additional slidable arm may be placed on the arm 1 for use as a calliper arm.
Patent GB-1454360-A (GB)
Title: Rotating rotary engine
IPC: F02B53/04
Filed: 1974-04-09
Abstract: 1454360 Rotary positive-displacement fluid-machines M J DESMOND 9 April 1974 15600/74 Heading F1F An I.C. engine has freely-oscillating pistons 3 co-operating with fixed combustion-chamber heads 6 and supported by shafts 5 in a rotary casing having an output shaft 8 and peripheral and endwalls 7, 19, 32A. Fuel and air mixture enters the combustion chambers 2 by way of an inlet 9 in the shaft 8, a space, or "reservoir", 46, and valves 15 operated by rods and arms 21 and cams (32), Fig. 2 (not shown), externally of the casing. Ignition is effected by spark-plugs (not shown) in the heads 6. Exhaust valves 11 are opened by external linkwork (25, 31) connected to the shafts 5. Oil is introduced through passages 17, 18 to lubricate sealing rings 16, surplus oil being ejected through pipes 12, 13. The shaft 1 is mounted in supports 38, carries a flywheel 37 and contains an oil feed duct 23 communicating with the passages 18 through lines 24. More than two casings may be disposed in tandem on a common output shaft, Figs. 4 and 5 (not shown).
Patent GB-786149-A (GB)
Title: An improved rotary cultivator
IPC: A01B33/08
Filed: 1956-05-18
Abstract: 786,149. Agricultural implements. ALLGAIER-WERKE GES. May 18, 1956 [May 21, 1955], No. 15603/56. Class 6(1).  The driving shaft 4 of a rotary cultivator is provided with a cranked portion 4<SP>1</SP> which passes in the gaps between blades 9, 9<SP>1</SP> to enable the ground to be cultivated for the full width of the blades. The cranked portion 4<SP>1</SP> is formed as a sharp blade whereby material carried up by the blades can be cut up without retarding the driving shaft. To minimise vibration the portion 4<SP>1</SP> is provided with counterweights 14. The blades are mounted on a frame 10 provided with points 11 for attachment to a tractor. The shaft 4 is driven from the power shaft 1 of a tractor through a universally jointed shaft 2 and safety coupling 3.
Patent GB-182654-A (GB)
Title: An improvement in fertilisers
IPC: C05B1/02
Filed: 1921-06-07
Abstract: 182,654. Desmond, S., and Tisdall, C. A. June 7, 1921. Manures.-Superphosphate of lime, sulphate of ammonia, sulphate of potash, phosphate of ammonia, and phosphate of potash are mixed together and used in powdered form or dissolved in water.
Patent GB-439040-A (GB)
Title: Improvements relating to friction clutches
IPC: F16D13/71
Filed: 1934-05-25
Abstract: 439,040. Clutches. BORG & BECK CO., Ltd., and BROCK, D. T., Brock House, Langham Street, London. May 25, 1934, No. 15702. [Class 80 (ii)] Relates to a clutch of the type in which clutchoperating levers 16 are fulcrumed, as on anglebrackets 15, on the cover-plate 7 and are perforated to engage bolts 14 projecting from the presser-plate 8. According to the invention, the ends of the levers 16 are straddled by stirrups 18, which, when the clutch is wholly or partly detached from the flywheel 6, come down on the cover-plate 7 so as to limit the movement of the presser plate in the direction of disengagement. The engaging springs are thus retained in compression, and the parts are clamped so that the clutch can be packed for transport without additional securing. In a modification, the end of the lever 16 is oppositely curved to engage a convex bearing surface inside the stirrup.
Patent GB-1211797-A (GB)
Title: Improvements in or relating to stirrers
IPC: C03B5/167
Filed: 1968-04-02
Abstract: 1,211,797. Stirrer for glass. PILKINGTON BROS. Ltd., and R. C. JEWELL. 26 March, 1969 [2 April, 1968], No. 15799/68. Heading C1M. [Also in Division B1] A stirrer for glass comprises a molybdenum core 14 coated with alumina or other refractory 17 and sheathed in platinum or platinum alloy 18, any gas space between the core and sheath being charged with an inert gas (e.g. argon or nitrogen. The gas space may be evacuated through a hole 20 in one or more steps to a pressure not exceeding 10<SP>-3</SP> Torr and inert gas introduced to a pressure not greater than that above the glass and preferably 2 Torr. The stirrer has an upper cylindrical portion 11 and a lower flatter portion (12, see Fig. 3, not shown) and is screwed into a steel flange 13 to which the sheath is silver soldered at 19.
Patent GB-593669-A (GB)
Title: Piston sealing means
IPC: F16J9/02
Filed: 1945-06-21
Abstract: 593,669. Piston rings. FLOWER, A. June 21, 1945, No. 15829. [Class 122 (i)] In a piston for a fluid pressure engine, at least two L-sectioned coacting rings 15 are located (e.g. by casting) in the metal of the piston 12 by inwardly extending radial portions 15b and their peripheral portions extend outside the metal of the piston in the operative direction to engage one another with a portion 16 of the radially outer surface o' each exposed for separately engaging the wall of the coacting cylinder and these portions are flared slight y to form a diameter slightly in excess of that of the co-operating cylinder 1. A lug 18 on one ring nay space the rings apart during the casting operation and the rings be separated solely by an L-sectioned, heat-conductive packing ring 35 nested in a stepped portion of the inner ring.
Patent GB-103110-A (GB)
Title: An Improved Feed Water Regulator for Boilers.
IPC: F22D5/10
Filed: 1916-11-06
Abstract: 103,110. Soc. J. et A. Niclausse. Jan. 3, 1916, [Convention date]. Feed-water, controlling.-When the water-level in the boiler falls below the normal, a valve n on a float o in a chamber in free communication with the boiler closes the bottom of a space l beneath a piston m on the unbalanced doublebeat feed-valve h, thus closing the feed-valve by the pressure of the feed-water passing into the space l through a by-passage k from the feedinlet g<1>. A valve s regulates the flow of water through the passage k.
Patent GB-695758-A (GB)
Title: Process for the preparation of disazo dyestuffs
IPC: C09B35/28
Filed: 1951-07-04
Abstract: The invention comprises disazo dyestuffs of the formula <FORM:0695758/IV (c)/1> where R is a p-coupling salicylic acid residue.  The invention also includes a process of making disazo dyestuffs by coupling diazotized amino-azo compounds of the formula <FORM:0695758/IV (c)/2> with amino derivatives of 1-naphthol-3-sulphonic acid (which may contain a further sulphonic acid group), the amino groups being acylated before or after coupling.  The monoazo intermediates are p  made by coupling diazotized p-nitraniline with salicylic acid or a p-coupling derivative thereof, reducing the nitro group to amino, condensing the product with 3-methyl-4-nitrobenzoyl chloride and again reducing the product.  The disazo dyestuffs yield red dyeings on cotton and regenerated cellulose which may be after-coppered.  When a free amino group is present (e.g. in the acyl residue) the dyestuffs may be diazotized on the fibre and coupled with 2-naphthol to give dischargeable red shades.  In the examples, (1) the monoazo compound where R is 3-carboxy-4-hydroxyphenyl is diazotized and coupled with 2-carbethoxyamino-5-naphthol-1 : 7-disulphonic acid; (2) the monoazo compound where R is 3-carboxy-4-hydroxy-5-methylphenyl is diazotized and coupled with N-(p-aminobenzoyl)-g -acid; the product can be diazotized on the fibre and coupled with 2-naphthol; (3) the monoazo compound where R is 3-carboxy-4-hydroxy-6-methylphenyl is diazotized and coupled with J-acid and the product treated with p-nitrobenzoyl chloride; the acylated product may be reduced to the p-aminobenzoyl derivative, diazotized on the fibre and coupled with 2-naphthol.  A table is given of other dyestuffs where R is 3-carboxy-4-hydroxyphenyl.
Patent GB-381903-A (GB)
Title: Improvements relating to the recovery of silver from photo-graphic fixing baths
IPC: G03C5/395
Filed: 1932-06-04
Abstract: 381,903. Electrolytic recovery of silver from photographic fixing baths. KODAK, Ltd., Kingsway, London.- (Assignees of Hickman, K. C. D. ; Kodak Park, Rochester, New York, U.S.A.) June 4, 1932, No. 15874. Convention date, June 4, 1931. [Class 41.] A photographic fixing solution is continuously circulated between the fixing baths and electrolytic cells in which the silver content is reduced from say 2-3 gms. per litre to 0.5-1 gm. per litre. In addition a small portion of the solution is withdrawn to other cells in which substantially the whole of the silver is removed, this portion after electrolysis being preferably discharged to waste. Two of a set of cells 33 are shown in the drawing. Filtered solution from the fixing baths is supplied through regulating valves 35 and withdrawn by pipes 46, in one of which a two-way cock 50 is provided for discharge to waste. The circulating solution is led to a tank 48 provided with means for automatic regulation of the amount of liquid in circulation and of its concentration before return by a pump 66 to a storage tank for passage through the fixing bath. Fixing solution of normal strength is supplied by a pipe 55 controlled by a float-valve 58 or a hand-valve 56. Strong sodium thiosulphate solution is supplied by a pipe 62 in amount regulated in the following way. The pipe 67 from the pump 66 is provided with a byepass 69 having a tap 74 discharging into a funnel 72 at the top of a U-tube 71 the other limb of which ends in an adjustable spout 75 above the tank 48. A central vertical pipe leads to chamber 77 fed with water by a pipe 78. The strength of the solution in the U-tube controls the water level in the chamber 77 which acts through a float 80 and levers to regulate the closure of a length of rubber hose 63 in the pipe 62. A solution of hardening substance may be supplied by a pipe 52. Each electrolytic cell is provided with an agitator driven by a pulley 36. A suitable fixing bath comprises 300 parts sodium thiosulphate, 10 parts sodium sulphite, 10 parts acetic acid or the equivalent, 10 parts chrome alum, and 1000 parts water.
Patent GB-1510345-A (GB)
Title: Bias transfer members comprising polyurethane composition
IPC: G03G15/16
Filed: 1975-04-17
Abstract: 1510345 Transfer surface for toner images XEROX CORP 17 April 1975 [26 April 1974] 15884/75 Heading B6C [Also in Divisions B5 and C3] A biasable transfer member for use in electrostatographic copying and in the form of a roll or belt comprises an electrically conductive copper or aluminium substrate, and, in contact therewith, a layer of an elastomeric polyurethane composition incorporating an additive therein to give the layer a resistivity of from 10<SP>7</SP> to 5À0 Î 10<SP>11</SP> ohm/cm., the layer being optionally covered with an outer coating of a polyurethane. The layer may comprise a polyester based polyurethane, the reaction product of polybutadione polyol and a diisocyanate, the reaction product of castor oil and 2,4-tolylene diisocyanate, the reaction product of a diisocyanate and polyalkylene ether glycol, the reaction product of a diisocyanate and a hydroxyterminated polyester of a dimer acid and the reaction product of a diisocyanate and a hydroxy-terminated butadiene - acrylonitrile copolymer, specified additives to control the resistivity of the polyurethane being ionic or polar dyes, quaternary ammonium compounds, polyelectrolytes, inorganic salts, plasticizers, metal particles and charge transfer complexes.
Patent GB-993123-A (GB)
Title: Cartons, crates and similar containers
Inventor: TAYLOR ERIC
IPC: B65D85/32
Filed: 1961-05-03
Abstract: 993,123. Cartons. JOHN WADDINGTON Ltd. June 5, 1962 [May 3, 1961], No. 15959/61. Heading B8P. A carton for eggs comprises a tubular outer member and two similar apertured trays formed from the blanks shown in Figs. 3 and 4 respectively. Each tray is provided with flaps which are folded outwards to form a flange which engages beneath interlocked flaps 7, 8 of the outer member, the eggs being held between the two trays and located by the apertures 11. Slots 12 extending from the edges of the apertures 11 serve to grip the eggs in position. The outer member may have a lid or lids.
Patent GB-160505-A (GB)
Abstract: 160,505. Tuckfield, C. Sept. 3, 1920. Tubes or containers, collapsable.-A collapsable metal tube, screwed to fit the valve is employed to inject a puncture-closing liquid into a tyre.
Patent GB-830801-A (GB)
Title: Purification of terephthalic acid
Inventor: NESBITT PHILIP
Filed: 1957-05-21
Abstract: In a process for the purification of terephthalic acid containing coloured or colourforming impurities, the crude acid and the impurities are dissolved in a dialkyl sulphoxide, if desired in admixture with other known solvents for terephthalic acid, if necessary with the assistance of heat and the purified acid is recovered by separation from the solution in which the impurities remain dissolved.  Dimethyl and diethyl sulphoxides are the sulphoxides specified and other known solvents mentioned are acetic acid, benzoic acid and water.  The terephthalic acid may be recovered from its solution in the sulphoxide by cooling or by dilution with water.  Preferably dimethyl sulphoxide is employed at atmospheric pressure though superatmospheric pressures may be employed, if desired.  Examples, which include a continuous process, are described.  The conversion of purified terephthalic acid to a polyester is described (see Group IV (a)).ALSO:Polyesters of terephthalic acid are prepared by esterifying terephthalic acid with 7 mols. of ethylene glycol and subjecting such ester to poly-condensation in the presence of antimony oxide, such terephthalic acid having been purified from coloured or colour-forming impurities by a process in which the crude acid and the impurities are dissolved in a dialkyl sulphoxide, if desired in admixture with other known solvents for terephthalic acid, if necessary with the assistance of heat and the purified acid, is recovered by separation from the solution in which the impurities remain dissolved (see Group IV (b)).
Patent GB-494121-A (GB)
Title: Improved reversible sliding sash window
IPC: E06B3/50
Filed: 1937-06-11
Abstract: 494,121. Hinged sliding windows. WEYREUTER, J. June 11, 1937, Nos. 16175/37 and 18893/38. [Class 20 (iii)] A window construction having reversible weight-balanced sashes K, L, has its pulley stiles C each formed in two sections, the lower sections being fixed and the upper sections being secured to the frame lining B and being mounted to swing about hinges A. By this arrangement the upper sash, together with its stiles and lining can be swung downwards into the reversed position. Each lining is of sufficient width to cover the pulleys and the upper ends of the stiles are interconnected by a bar D fitted with a securing latch E. The lower sash K is normally secured to the supporting cords by a three-link chain. When the sash is lowered into the reversed position shown it is supported by chains H, and a hand cord F is attached to one of the links of each chain in order to lower the balance weights. The first Provisional Specification also describes a construction in which the bottom rail of the lower sash carries spring-controlled bolts adapted to support the sash by engaging with rack bars fitted to the stiles. The bolts act as pivot pins when the sash is swung into its reversed position.