baber/WOPTO huggingface dataset:
Patent GB-421975-A (GB)
Title: New monoazo dyestuffs
IPC: C09B29/08
Filed: 1933-06-26
Abstract: Monoazo dyes for cellulose ester and ether materials are made by diazotizing 6-bromo- or 6 - chloro - 2 : 4 - dinitroaniline in concentrated sulphuric acid medium and adding the acid diazo solution directly to an acid solution of an amine of the benzene series which couples in p-position to the amino group, the said amino group carrying one or two alkyl groups at least one of which is hydroxylated.  In examples, the following dyes are described: 6-chloro-2 : 4-dinitroaniline --> N-b b <1>-dihydroxydiethyl-m-toluidine, N - n - butyl - N - b  - hydroxyethyl - 3 - amino-4-methoxytoluene, or N-ethyl-N-b g -dihydroxypropylaniline; 6-bromo-2 : 4-dinitroaniline --> N - b b <1> - dihydroxydiethyl - m - toluidine, N - n - butyl - N - b  - hydroxyethyl - 3-amino-4-methoxytoluene or N-n-butyl-N-b -hydroxyethyl - m - toluidine.  Specifications 181,750, 251,155, 274,823, 292,180, [all in Class 2 (iii)], and 409,921 are referred to.  N - n - Butyl - N - b  - hydroxyethyl - 3 - amino - 4-methoxytoluene is prepared from m-amino-p-cresolmethylether by reacting with ethylenechlorhydrin to form N-mono-b -hydroxyethyl-m-amino-p-cresolmethylether and then condensing with n-butylchloride.  N-Ethyl-N-b g -dihydroxypropylaniline is made by condensing ethylaniline with glycerol chlorohydrin.  N - n - Butyl - N - b  - hydroxyethyl - m - toluidine is made by reacting N - b  - hydroxyethyl - m - toluidine with n-butylbromide.
Patent GB-906908-A (GB)
Title: Improvements in or relating to the preparation photographic silver halide emulsions
Inventor: PAUW ALFONS JOZEF DE
IPC: G03C1/04
Filed: 1959-05-28
Abstract: 906,908. Photographic emulsions. GEVAERT PHOTO-PRODUCTEN N.V. May 28, 1959 [May 30, 1958], No. 18194/59. Class 98 (2). Photographic emulsions are prepared by precipitating silver halide by mixing a watersoluble silver salt with a water-soluble halide in the presence of a mono-ester of polyvinyl alcohol and a polybasic organic acid, ripening the dispersion and freeing it from water-soluble salts and then redispersing it in an aqueous hydrophilitic colloid. The organic acid used to esterify the polyvinyl alcohol may be succinic, glutaric, tartaric, malic, maleic, fumaric, glutaconic, itaconic, phthalic or citric. The silver halide suspension formed initially may be precipitated by pouring it into an organic liquid as described in Specification 819,039. The silver halide grains may be washed in the usual way or the soluble salts may be removed by dialysis. The grains are then mixed with the hydrophilic colloid or binder. Suitable binders are gelatin, polyvinyl alcohol and mono-esters of the latter with polybasic acids such as are used for the initial precipitation. Binders of polyvinyl alcohol or its esters may be hardened by treating with dimethylol urea, or with aliphatic diamines as in Specification 860,632. Specification 789,823 also is referred to.
Patent GB-196845-A (GB)
Title: Improvements in means for connecting the ends of hose to unions, couplings, or analogous parts
IPC: F16L33/22
Filed: 1922-07-03
Abstract: 196,845. Hayes, A. July 3, 1922. N‹ Patent granted (Sealing fee not paid). Joints with yielding inner part expanded.-A tubes 6 is forced into the slotted serrated spigot 2, provided with the usual screw thread 4 for the reception of a union nut, so as to expand the spigot to grip the hose 1 between it and a loose collar 3. The tube 6 may be provided with suitable projections or apertures to enable it to be withdrawn by a tool if desired.
Patent GB-1224712-A (GB)
Title: Headlamp adjusting systems for road vehicles
IPC: B60Q1/105
Filed: 1969-04-10
Abstract: 1,224,712. Vehicle headlamps. DUCELLIER ET CIE. 10 April, 1969 [17 April, 1968], No. 18347/69. Heading F4R. In a temperature compensated headlamp adjusting system for a motor vehicle comprising control devices 4 which adjust the headlamps P in accordance with an input gas pressure derived from vehicle attitude sensing devices 3, the input gas pressure acts on a piston 20 working against an opposed resilient gas-filled cushion 19, which forms part of the control device, to adjust the lamps. Thus, as changes in gas pressure in the system and in the resilient cushion, due to temperature changes, are equal and act on the piston in opposition they cancel one another's effect and provide temperature compensation. Each gas-filled cushion 19 may be of toroidal form, the piston having an annular projection to co-operate with it. The front face of the piston contacts a membrane 15 which forms one wall of a variable volume chamber 16 connected via pipe 6 to the attitude sensing devices at the front and rear axles. The gas-filled cushions are connected together via pipes 18a and reservoir 35. In an alternative embodiment, Fig. 4, not shown, the gas-filled cushions are each in the form of a truncated cone, the smaller diameter wall being attached directly to the piston, and the other wall, through which the piston-rod passes, being retained by a metal plate having a central aperture to allow the passage of the piston-rod to the lamp. In a further embodiment of the system, the variable volume chamber 16 is connected to the sensing device at the back axle and the gas-filled cushion. 19 is connected to the front axle sensing device. Initial adjustments of the lamps are made manually by rotating the piston-rods 21 which are threaded to screw into the lamp 24.
Patent GB-304560-A (GB)
Title: Improvements in means for operating suction-actuated accessories of internal combustion engines
IPC: B60S1/06
Filed: 1928-06-25
Abstract: 304,560. Trico Products Corporation. April 2, 1928, [Convention date]. Windows and the like, cleaning.-A device for use with the suction-operated windscreen wiper of a vehicle, comprises a body 3 connected at 1 to the induction pipe of the vehicle engine, and at 2 to the motor of the wind. screen wiper, the body containing a Venturi passage 6 into which opens an injector 4 the outer end of which is open to the atmosphere and is controlled by a valve 10. The valve 10 is held open by a spring 13 at low suctions, the injector action increasing the suction on the motor of the windscreen wiper, but at normal or high suctions the valve is closed bv a piston 12, to which suction is transmitted through a port 11<1>, to prevent dilution of the charge and racing of the motor.
Patent GB-820739-A (GB)
Title: Improvements in fastening devices
Inventor: STRANGE JOHN
IPC: F16B9/02
Filed: 1956-06-14
Abstract: 820,739. Clamps; nuts. SIMMONDS AEROCESSORIES Ltd. Aug. 23, 1957 [June 14, 1956], No 18416/56. Classes 44 and 89(1) A fastening device . A for fastening a tubular part T to a panel or other member P, comprises a single piece of resilient sheet metal bent to provide a centrally - apertured base 22 and a number of limbs 4, 6 extending all in the same general direction, and screw-thread engaging means 36 carried by a portion of at least one limb remote from the base and in alignment with the aperture 10 therein, the limbs being formed whereby, on insertion thereof into the tubular-part with the base adjacent the apertured panel or other member and with a screw S projecting through the apertures in the panel or other member and the base and engaging the screw-thread engaging means, screwing the screw into the latter-means to draw it towards the base causes parts 7, 24 of the limbs to move outwardly until they firmly grip the tubular part T. As shown, the limb 4 is bent towards its end 25 to form the part 24 which, as. the screw. S is tightened, is engaged by a free end 26 of a screw-threaded head 11 of limb 6 to force the part 24 and a neck 7 into engagement with the tube T. Shoulders 23 formed on the limbs 4, 6 maintain the tube in spaced relationship to the panel P. In.modifications, Figs. 4-9 (not shown), the shoulders 23 are dispensed with, or are formed across the width of the limbs 4, 6, the head 11 is provided at opposite sides thereof with upturned-flanges or corrugations, and the screw-thread in the head is provided by a tapped boss or by opposed pressed-up tongues. In the arrangement according to Figs. 1-3 of the Complete Specification (not shown), the limbs 4, 6 are alike and terminate in head portions, each providing an extremity formed on a helix to engage a screw-thread, and a pair of prongs projecting from the head portion and adapted to dig into the wall of the tube as the screw is tightened to draw the head portions towards the base.
Patent GB-1253690-A (GB)
Title: Seed planter
IPC: H01R4/02
Filed: 1969-04-10
Abstract: 1,253,690. Seed sower. DEERE & CO. 10 April, 1969 [12 April, 1968], No. 18474/69. Heading AID.  A seed planter includes a hopper 18, a seed discharge means and at least two independent seed selecting mechanism 30, 32. The discharge means is that disclosed in Specification 1,253,688 and one of the seed selectors is that disclosed in Specification 1,253,689. The other seed selector mechanism is a single seed selector comprising a casting 90 and a seed wheel 92 caused to bear against the casting by a spring 100. Each face of the seed wheel is provided with a fluted circular groove or grooves for different sized seeds. A discharge receptacle portion 114 of the casting receives the seed and discharges seed selected by the wheel 92 into the seed boot from where it passes into the furrow opened by the discs 20. The hopper 18 has a pair of spaced apart discharge opening and a rotatable plate 28 with a single opening whereby the hopper can be selectively connected to either or neither of the seed selecting mechanisms. The hopper 18 is detachably connected to the machine.
Patent GB-200841-A (GB)
IPC: H01B17/26
Filed: 1923-07-17
Abstract: 200,841. Measurement, Ltd., (Assignees of Compagnie pour la Fabrication des Compteurs et MatÚriel d'Usines Ó Gaz.). July 17, 1922, [Convention date]. Void [Published under Sect. 91 of the Act]. Drawings to Specification. Condensers; transformers.-A vacuum is used as the dielectric in condensers and for separating the primary and secondary windings of transformers.
Patent GB-706300-A (GB)
Title: Improvements in or relating to thermometers
IPC: G01K5/00
Filed: 1952-07-24
Abstract: 706,300. Thermometers. DAHL, K. K. July 24, 1952, No. 18768/52. Class 97(3) A thermometer 1 comprises a capillary tube 3 and a sandglass 4 disposed inside the mantle 2 and behind a scale holder 5. The sandglass may be of circular section or provided with one flat face. In the latter case, the thermometer scale can be provided on said face and the scale holder 5 omitted.
Patent GB-118765-A (GB)
Title: Improvements in Tongs.
Inventor: GILBERT WALTER VILLA
IPC: F24B15/10
Filed: 1917-12-19
Abstract: 118,765. Gilbert, W. V. Dec. 19, 1917. Tongs for gripping articles, having opposing blades 12 of resilient material bifurcated along their rear parts 13 and with the blades mounted so that, when the rear ends of the bifurcations of each blade are caused tc approach, the fore ends 14 approach in a direction at right-angles, are constructed with the rear ends 13 of the bifurcations of each blade sprung to, and held in, a more acute angular relation in cross - section to o n e another than the fore ends 14. The rear ends are inserted into sockets 15 and clamped by blocks secured by tongues; each socket 15 and handle 19 may be formed in one from sheet metal by stamping.
Patent GB-573916-A (GB)
Title: Improvements in or relating to dial gauges
IPC: G01D7/04
Filed: 1943-11-12
Abstract: 573,916. Dial gauges. REDSHAW, J. C. Nov. 12, 1943, No. 18903. [Class 106 (iv)] A dial gauge has a second pointer c<1> which may be disengaged from the indicating pointer b<1> and after adjustment to any desired position may be engaged again with the indicating pointer to move therewith. In a panel carrying a plurality of such gauges, a11 secondary pointers, which may be luminous, are adjusted to be in the vertical position when the indicating pointers are in normal position. Deviations from normal can then be seen readily from a distance and without knowledge of normal readings. The pointer c<1> is carried by a boss C which may be disengaged from the flange N on the boss B carrying the indicating pointer b<1> by pulling the knob k. Rotation of the pointer c<1> in the free position is achieved through a friction washer D on the spindle of the operating knob.
Patent GB-356343-A (GB)
IPC: D01F2/28
Filed: 1930-06-20
Abstract: Lustrous filaments, yarns, bristles, straws and the like are produced from water-insoluble organic derivatives of cellulose by wet-spinning processes in which coagulation is conducted under such conditions that the formed materials contain a solvent or a latent solvent for the cellulose derivative, the formed materials being then heated. Thus, the cellulose derivatives solution may contain a substance which is a solvent or latent solvent for the derivative at ordinary or raised temperature, but is relatively insoluble in the coagulating bath; examples of such substances, when an aqueous coagulating bath is used, are methylene chloride, ethylene dichloride, triacetin, acetophenone, tetrachlorethane, and dibutyl tartrate.  Any suitable solvent, however, may be used in preparing the spinning solution, and the coagulating liquid may be any non-solvent (for the cellulose derivative) that dissolves or is miscible with at least a part of the solvent; other specified solvents are acetone, chloroform, and mixtures of methyl or ethyl alcohol with methylene or ethylene chloride or dichlorethylene, and other specified coagulants are hydrocarbons such as benzene and its homologues and petroleum hydrocarbons.  If ordinary spinning solutions are used, the retention of some of the solvent in the formed materials may be ensured by restricting the length of the path of the materials in the bath, and (or) by increasing the speed of spinning.  The heating of the formed materials may be effected by bringing them into contact with heated feed rolls, pipes, rods or plates, or by passing them between pressure rolls, at least one of which is heated.  The heat treatment may be applied directly after coagulation, or the filaments may first be wound or twisted and wound.  The filaments may also be stretched during the process.  According to the examples, (1) a solution of cellulose acetate in ethylene dichloride, methyl alcohol and triacetin is spun into an aqueous bath, and prior to winding the threads are passed around heated rolls; (2) a solution of cellulose acetate in acetone and acetophenone is spun as in example (1); (3) a solution of cellulose acetate in acetone and diethylene glycol is spun into a kerosene bath, and the filaments are heated as in example 1. Specifications 332,187 and 332,527, [both in Class 2 (ii), Cellulose &c.], are referred to.  The Specification as open to inspection under Sect. 91 (3) (a) covers the application of the process to the manufacture of filaments &c. from cellulose derivatives generally, including cellulose nitrate.  This subject-matter does not appear in the Specification as accepted.
Patent GB-736645-A (GB)
Title: Stabilization of unsaturated nitriles
IPC: C08F2/38
Filed: 1953-07-09
Abstract: An unsaturated nitrile is stabilized by a process comprising adding thereto a quaternary ammonium halide in which the groups attached to the nitrogen atom are monovalent organic groups.  The alpha, beta-olefinic nitriles of general formula <FORM:0736645/IV (b)/1> in which R, R1 and R11 are hydrogen atoms or alkyl groups containing from 1 to 8 carbon atoms are readily stabilized against polymerization by the process.  Any quaternary ammonium halide of formula <FORM:0736645/IV (b)/2> in which R2, R3, R4 and R5 are monovalent organic groups and X is a halogen atom may be used.  For example, R2, R3, R4 and R5 may be alkyl, aryl or aralkyl groups which may contain acyloxy, carboxyl or hydroxyl p  substituents.  In the examples (a) acrylonitrile containing some acetaldehyde is stabilized by addition of choline chloride, tetramethyl ammonium bromide, trimethyl phenyl ammonium chloride, acetyl choline bromide and tetramethyl ammonium chloride; (b) benzyl trimethyl ammonium fluoride is used to stabilize acrylonitrile, a -methacrylonitrile, crotonitrile, a -ethyl acrylonitrile and b -hexylacrylonitrile; (c) carboxymethyl trimethyl ammonium chloride is used to stabilize acrylonitrile, a ,b -dimethyl acrylonitrile, a -methacrylonitrile, b -butylmethacrylonitrile, and b (2-chloromethyl)acrylonitrile; (d) (1 - carboxyethyl) diethylmethyl ammonium iodide is used to stabilize various nitriles including a -furfuryl acrylonitrile; (e) tetrapropylammonium chloride is used to stabilize various nitriles including a -naphthyl acrylonitrile, a -(4-hydroxyphenyl) acrylonitrile; and (f) stearyl dimethyl benzyl ammonium chloride, di-iso butylphenoxyethoxyethyl dimethyl-benzyl-ammonium chloride and dodecylbenzyltrimethyl ammonium chloride are used to stabilize acrylonitrile, a -methacrylonitrile and crotonitrile.ALSO:To inhibit polymer formation of unsaturated nitriles during distillation an inhibitor, consisting of a quaternary ammonium halide of formula <FORM:0736645/III/1> in which R2, R3, R4 and R5 are monovalent organic groups and X is a halogen, is added either to the feed stream or is introduced separately at some point in the distillation column.
Patent GB-387338-A (GB)
Title: New or improved device for selecting numbers, letters or other signs and combinations thereof by chance
IPC: G07C15/00
Filed: 1931-07-02
Abstract: 387,338. Games of chance. CASH, S., 12, Madison Avenue, Cheadle Hulme, Cheshire, and DAVIES, C., 43, City Road, Hulme, Manchester. July 2, 1931, Nos. 19073/31 and 1213/32. [Class 132 (ii).] A device for selecting combinations of numbers, letters or other signs by chance comprises a number of members mounted on a common shaft upon or with which they are free to rotate in one direction and through which they are simultaneously driven, each member being formed on its internal periphery with a series of serrations that co-operate with a bias member or bias members carried by the rotatable member to bring the rotatable member to rest in one of a number of predetermined positions, and each member having associated therewith a number of indicator devices adapted to rotate therewith wholly or to a limited extent, one of such indicator devices assuming a predetermined position of exhibition when the member comes to rest. As shown in Fig. 1, a number of flanged discs 3 are keyed to a shaft 4 rotatable by a crank 6 through a one-way clutch 7. Supported by rollers 9 upon the serrated inner peripheries of the flanges of each disc are a number of pendulous indicator devices 11, one of which becomes visible at a window 12 when in the position of repose. The exhibited indicator devices are illuminated by a lamp 13. In a modification, Figs. 3 and 9, the indications are marked on the cylindrical surfaces of the disc flanges and the pendulous indicators are replaced by weights 17. The resulting indication is read through a frame 36 that may be glazed and is depressible by knobs 38 into reading position against the action of springs 39. The shafts may be motordriven and each disc may be separately connected to the shaft through a free-wheel device. Mirrors may be provided to render the indications more clearly visible or an image of the indications may be projected on a screen.
Patent GB-596266-A (GB)
Title: Improvements in or relating to electric resistors
IPC: H01C17/04
Filed: 1945-07-25
Abstract: 596,266. Wire and ribbon resistances ; cooling resistances. REYROLLE & CO., Ltd., A., and MORDUE, H. July 25, 1945, No. 19082. [Class 37] A resistor, particularly suitable for use in conjunction with gas blast circuit-breakers, comprises a continuous resistance element wound in the form of a plurality of coaxial conical spirals. In the construction shown, which comprises a resilient interlocked telescopic assembly of identical porcelain cones L flaring in one direction on a central shaft D adjacent conical coils H<1>, H<2>, &c., are oppositely wound in spiral grooves L' in the outer face of each cone to produce a non-inductive resistance wound throughout in a direction opposite to the direction of flare of the cones from a single resistance spool as follows. The end of the resistance wire, which is threaded through the hubs L<2> of a sub-assembly of cones l<2>, l<4>, &c., flaring in the required direction is anchored in a peripheral slot L' of a first cone l<1> mounted on shaft D, whereby rotation of the latter winds a coil inwardly to the end of spiral groove L' in the first cone l<1> so that an internal groove L <5> in the hub L<2> of the second cone l<2> forms a passage for the resistance wire to the inner end of spiral groove L' in the second cone l<2>. A second coil is then wound outwardly and the wire anchored in the peripheral slot L<8> of a telescoped third cone l<3> drawn from an independent group l<1>, l<3>, &c., whereupon a third coil is wound, and so on. The assembly is interlocked by means of co-operating spigots and recesses L<6>, L', angularly spaced on each cone in predetermined relation to ventilation ducts L<3>, L<4> of interengaging cones and staggering of adjacent peripheral slots L<8>. In a modification, Figs. 1 to 4 (not shown), the cones are not grooved, but pre-assembled on shaft D which also carries the resistance spool whereby successive loops drawn therefrom are wound in one direction to form simultaneously pairs of coils effectively wound in opposite directions in the sense that current flowing in the resistor traverses adjacent coils in opposite directions.
Patent GB-663981-A (GB)
Title: Method of preparing electron-emissive coating materials
IPC: H01J1/142
Filed: 1949-07-20
Abstract: 663,981. Cathode materials. SYLVANIA ELECTRIC PRODUCTS, Inc. July 20, 1949 [July 30, 1948], No. 19169/49. Class 39 (i). The preparation of an electron-emissive coating material includes the step of precipitating together the salts of one or more of the alkaline earth metals and of zirconium to obtain an intimate mixture. In the preferred form, specified proportions of zirconyl nitrate and of the nitrates of calcium, barium and strontium are heated in a solution of specified strength to 85‹ C., to which is added another solution at a temperature of 35‹ C. and contains specified proportions of ammonium carbonate and ammonium hydroxide. The suspension is then stirred for 5 minutes, allowed to settle for 30 minutes, washed, filtered and dried at 350‹ C. to produce zirconium dioxide. The size of the crystals is determined by the solution temperatures, speed of stirring and rate of adding the second solution. In modifications, the zirconyl carbonate may be converted to the dioxide during the processing of the discharge tube and the nitrates may be replaced by chlorides or acetates. The cathode may be used in gas discharge devices such as fluorescent lamps. The proportions of the constituent materials in the final mixture also are specified. Specifications 646,369 and 647,954 are referred to.