baber/WOPTO huggingface dataset:
Patent GB-651705-A (GB)
Title: Improvements relating to devices for automatically disinfecting telephones
IPC: H04M1/17
Filed: 1948-12-23
Abstract: 651,705. Sanitary and hygienic devices. JESSUP, V. C., and ROBERTS, D. M. Dec. 23, 1948, No. 33178. [Class 40 (iv)] The mouthpiece of a telephone receiver is automatically sprayed with disinfectant when it engages and depresses a rubber cup-like spraying member 33 as the receiver is returned to its position of rest. In one arrangement, the member 33 is mounted on the plunger 18 of a pump which drives the disinfectant through an axial bore 25 in the plunger and through orifices 23 in the spraying member. The container 14 for the pump and the disinfectant may be attached either to the telephone base 10 or to a tray on which the base rests. The pump comprises a piston 27, a cylinder 32 and a non- return valve 30, the disinfectant being fed to the cylinder through a radial bore (Fig. 3, not shown). In a second arrangement, the disinfectant is pumped by means of a rubber ball which is compressed when the plunger is depressed. In a third arrangement, the disinfectant is fed by gravity and the plunger operates a valve to control the spray. In any of these arrangements, the disinfectant may be fed to an absorbent pad in the spraying member 33. The disinfectant may be sprayed only when the receiver has been removed and replaced a predetermined number of times.
Patent GB-875099-A (GB)
Title: Self-extinguishing plastics and a process for the production thereof
IPC: C08F283/01
Filed: 1959-09-30
Abstract: Self-extinguishing plastics are produced by catalytically copolymering a mixture of (1) an unsaturated, polymerizable, halogen-containing polyester derived from a polyhydric alcohol and a polycarboxylic acid and (2) a co-polymerizable ethylenically unsaturated compound in the presence of an a -hydroxyalkyl-phosphonic acid dialkyl or divinyl ester of the general formula: <FORM:0875099/IV (a)/1> wherein R1, R2 and R3, which may be the same or different, each represent an alkyl or alkenyl radical, or in the case of R1 and R2, a hydrogen atom.  Esters specified are the dimethyl esters of hydroxymethyl-, a -hydroxyethyl-, 2-hydroxyisopropyl-, and a -vinyl a -hydroxyethyl-phosphonic acids. The polyesters are polycondensation products of polyhydric alcohols and a -b -unsaturated dicarboxylic acids (e.g. maleic) and, optionally, saturated dicarboxylic acids, one or more of the components being halogenated.  Suitable halogenated components are di- and tetra-chlorinated or brominated phthalic acid, hexachloro -endomethylenetetrahydrophthalic acid and the pentachlorophenyl ethers of polybasic alcohols.  Specified comonomers are styrene, acrylic and methacrylic acids, methacrylate and allyl esters and their halogenation derivatives, e.g. chloro- and bromo-styrenes. Suitable copolymerization catalysts are benzoyl, acetyl and cyclohexanone peroxides.  In the examples, the polyester is derived from maleic anhydride, phthalic acid, hexachloroendomethylene-tetrahydrophthalic acid and 1, 3-butanediol, the comonomer is styrene, and the catalyst benzoyl peroxide suspended in dibutyl phthalate.  Copolymerization is effected in the presence of the above-mentioned phosphorus compounds and-for comparison-tri-ethyl-, b -chloroethyl-, allyl-, (2, 3-dibromopropyl):, phenyl- and cresylphosphates, dichlorovinyl phosphonic acid diethyl ester and b -chloroethyl phosphonic acid di-b -chloroethyl ester.ALSO:Phosphorus compounds of the general formula <FORM:0875099/IV (b)/1> wherein R1, R2 and R3 may be the same or different and each represent an alkyl or alkenyl radical or, in the case of R1 and R2, a hydrogen atom, are used to impart fireresistance to unsaturated polyester resins (see Group IV(a)).  They may be prepared by the addition of catalytic amounts of sodium methylate to a mixture of dialkyl phosphite and a hydroxy compound.  Compounds mentioned are the dimethyl esters of hydroxymethyl-, alpha hydroxyethyl-, 2-hydroxyisopropyl- and alpha vinyl alpha hydroxyethylphosphonic acids.ALSO:A 50% suspension of benzoyl peroxide in dibutyl phthalate is used as a copolymerization catalyst for unsaturated polyester resins (see Group IV(a)).
Patent GB-1472218-A (GB)
Title: Hose pipe and clamping ring ring combination
IPC: F16L33/02
Filed: 1974-07-29
Abstract: 1472218 Pipe couplings FICHTEL & SACHS AG 29 July 1974 [7 Aug 1973] 33390/74 Heading F2G A pipe joint comprises a rigid annular clamping ring 3 fastened on a hose 5 such that when a cylindrical tube 1, provided with a frustoconical surface 2 at its one end to assist in assembly, is inserted into the hose 5 the hose material is compressed between the collar 3 and the tube 1, both of which remain substantially undeformed, a holding force being provided by the resistance to deformation of the hose 5, the clamping ring 3 having an internal diameter substantially equal to the external diameter of the undeformed hose while the external diameter of the pipe is greater than the internal diameter of the undeformed hose.
Patent GB-526941-A (GB)
Title: Improvements in projectiles applicable also to other bodies moving in guides
IPC: F42B14/04
Filed: 1938-11-17
Abstract: 526,941. Ammunition projectiles. PLAISTOWE, E. R. H. Nov. 17, 1938, No. 33486. [Class 9 (i)] A projectile or similar body adapted for projection from a tube has a driving or lubricating band formed of porous metal impregnated with lubricant and closely associated with malleable or ductile material such as copper. In the form shown in Fig. 1, the copper or like band a has an inset ring c formed of porous metal impregnated with lubricant. Fig. 2 shows a modification in which the rings c have dovetailed engagement with copper or like rings a. The porous metal or alloy may be obtained by mechanical agglomeration under pressure (with or without heat treatment) of particles of ferrous metal or alloy or a bronze. Lubricating oils, waxes, or alloys of low melting point may be used as the lubricant. Specifications 465,392 and 528,570 are referred to.
Patent GB-325489-A (GB)
Title: Improvements in apparatus for the drying or cooling of stone, slag and like material
IPC: E01C19/05
Filed: 1928-11-15
Abstract: 325,489. Thorne, S. L., and Tilbury Contracting & Dredging Co., Ltd. Nov. 15, 1928. Continuous-discharge apparatus, rotary.-In rotary cylinders for drying or cooling stone, &c. of the kind having an internal helical web 2 and means for lifting and dropping the stone during its travel through the cylinder, the flat lifting plates 4 are secured to the internal face of the cylinder, and are arranged at an angle to its axis. The cylinder may be made in sections each comprising a number of segments. The helical web increases in width from one end of the cylinder to the other, and may be perforated. The air for drying or cooling is preferably supplied at that end of the cylinder where the web is narrowest, and the stone passes through in the opposite direction, but the stone and air may be passed in the same direction. Screens 12 may be provided in the cylinder wall for removing dust.
Patent GB-503256-A (GB)
Title: Process for the separation of ammonia and sulphuretted hydrogen
IPC: C01C1/247
Filed: 1937-12-06
Abstract: 503,256. Ammonia ; ammonium salts. GUILLISSEN, J., and UNION CHIMIQUE BELGE SOC. ANON. Dec. 6, 1937. No. 33759. [Class 1 (ii)] The ammonia of ammoniacal vapours arising from the distillation of ammoniacal gas liq. ours or other impure ammoniacal solutions is freed from sulphuretted hydrogen with the recovery of useful sulphur compounds by completely absorbing the vapours in a hot ammoniacal solution in which the sulphuretted hydrogen is oxidized and transformed into non-volatile products by means of gaseous oxygen without any supply of external heat other than that contained in the aminoniacal vapours, and recovering the pure gaseous ammonia from the solution. Hot ammoniacal distillation vapours containing sulphuretted hydrogen enter a conduit 8 and pass upwards through a filling @ of small height in which they are completely absorbed in a hot downward-flowing ammoniacal solution. Theammoniacal solution passes down a column 1 in counter-current to compressed air or other oxygen-containing gas which is blown in at 9. The hydrogen sulphide is completely oxidized with the formation of ammonium sulphate, thiosulphate, and polythionates while the residual air escapes by a conduit 10 carrying away with it the ammonia together with carbon dioxide and considerable water vapour. The purified ammonia vapour may be utilized in an acid saturator. The circulating ammoniacal solution is pumped from the bottom of the column 1 by a pump 3 through a pipe 5 to the top of the packing 7. The difference in height between the liquid at the top of the column, and the top of the pipe 5 is made very small and the output of the pump 3 may be as much as 150 or more times the volume of the impure ammoniacal liquor to be treated. The ammoniacal liquor circulating in the apparatus may contain 15-20 grams per litre of free ammonia and have a temperature of 80-95‹ C. This temperature may be initially attained by the introduction of steam and is subsequently maintained by the heat of the reactions. The temperature of the entering ammoniacal vapours is preferably slightly higher than the circulating liquid. The circulating liquor may be provided with a catalyst for assisting the oxidation, but traces of iron coming from the walls of the apparatus is usually sufficient. A suitable catalyst is a salt of iron and/or arsenites or arsenates.
Patent GB-1158901-A (GB)
Title: Improvements in or relating to Pumps and Compressors
Inventor: MOORE ROBERT EDWIN
IPC: F04D13/06
Filed: 1965-08-06
Abstract: 1,158,901. Axial-flow pumps and compressors. INTERNATIONAL STANDARD ELECTRIC CORP. Aug. 5, 1966 [Aug. 6, 1965J, No. 33809/65. Heading F1C. [Also in Division H2] A pump or compressor comprises rotor blades 9 carried by the external rotor 7 of the electric driving motor. The motor stator 4 is carried by a stationaryshaft 5 on which the rotor 7 is journalled, Power is supplied to the stator via supply leads 6 running through a passage within the shaft. In addition, the power may be fed to the rotor via slip rings. The space between the rotor 7 and the stator 4 is filled with oil. Stator blades may be provided on the inside of the casing 1.
Patent GB-805021-A (GB)
Title: Process for n, n-diisopropylbenzo-thiazole-2-sulfenamide
IPC: C08K5/00
Filed: 1956-11-06
Abstract: N : N - Di - isopropyl - benzthiazole - 2 - sulphenamide is prepared by reacting a salt of 2-mercaptobenzthiazole with preformed N-chlor-di-isopropylamine at pH 11.0-13.0 in an aqueous medium containing di-isopropylamine.  The pH is held within the desired range by the presence of a buffer such as mono- or di-sodium phosphate.  Preferred conditions are pH 11.8-12.5 using 1.75-2 mols. of diisopropylamine and 1 mol. or more of N-chloro-di-isopropylamine per mol. of mercaptobenzthiazole.  The salt of the latter used may be any water-soluble salt, e.g. ammonium, alkali metal or alkaline earth metal.  The temperature is preferably kept at about 15 DEG  C. while the reactants are being mixed and then raised to 40-50 DEG  to complete the reaction. Examples are given of the process of the invention compared with similar methods without the diisopropylamine. The preparation of N-chlor-di-isopropylamine from the amine and sodium hypochlorite is also described.
Patent GB-1112024-A (GB)
Title: Thermoplastic compositions comprising polyethylene,butyl rubber,and an ethylene/vinyl acetate copolymer
Inventor: CERESA RAYMOND JOHN
IPC: B21D51/44
Filed: 1964-10-28
Abstract: Compositions suitable for sealing gaskets of container closures comprise polyethylene, butyl rubber and an ethylene/vinyl acetate copolymer. The compositions may also comprise fillers, pigments, slip agents, blowing agents, cork particles, resins and rust inhibitors, e.g. titanium dioxide, carbon black, azobiscarbonamide, calcium carbonate, barytes, clay, silicones, waxes, rosin, rosin esters, terpene resins and sodium benzoate.
Patent GB-1428938-A (GB)
Title: 2,5-dideoxystrptamines and 6,6-diaza-2,4-dihydroxy-bicyclo- 3,2,1-octanes and methods for their preparation
IPC: C07D231/54
Filed: 1974-08-01
Abstract: 1428938 2,5 - Dideoxy - streptamines SCHERICO Ltd 1 Aug 1974 [6 Aug 1973] 33966/74 Heading C2C Novel compounds (I) and (III) and their acid addition salts in which one of R 1  and R 2  is hydrogen and the other is hydrogen or C 1-4  alkyl, are prepared by reacting cis-4,8-dioxatricyclo-[5,1,O,O<SP>3,5</SP>]-octane with a hydrazine NHR 1 -NHR 2  to form a compound III or a racemate thereof which may be resolved (when one of R 1  and R 2  is C 1-4  alkyl) and, if desired hydrogenolysing a compound (III) and isolating the compound (I) formed as such, as a racemic mixture (when one of R 1  and R 2  is C 1-4  alkyl) or in the form of an acid addition salt.
Patent GB-1351539-A (GB)
Title: Bending machine for wire or strip
IPC: B21D11/12
Filed: 1972-07-20
Abstract: 1351539 Bending wire and strip; shearing EVG ENTWICKLUNGS U VERWERTUNGS GmbH 20 July 1972 [12 April 1972] 34051/72 Headings B3E and B3W [Also in Division F2] A pivoted wire or strip bending tool 20 is angularly reciprocated by a drive from motor 21 which includes linkwork adjustable by spindle 32 to adjust the angular throw of the tool. Fig. 3 shows, in side view and extended in the direction of arrow P, the linkwork of Fig. 1. Motor 21 drives a flywheel 23 connected by a clutch (not shown) and toothed gears 23, 25, and eccentric 26 to a connecting rod 27. Rod 27 is pivoted at 37 to a working link 28 and swing link 29. The former operates tool 20 through bell crank 35 and link 38, and the latter is pivoted at 33 to an adjustment lever 30, one end of which has a fixed pivot 31, while the other end is located by threaded spindle 32. The distances between pivots 34 and 37, 33 and 37, 31 and 33, and 31 and 36 are preferably equal. The throw of the tool is adjusted by manual or programmed rotation of spindle 32, being zero when pivots 33, 34 are coaxial. The machine also includes former 19, feed rollers 2, 3, straightener 14, shears 17, 18 operated by motor 62 through flywheel 64, eccentric 67 and connecting rod 68 and controlled by measuring drum 15, and an ejector pin 51 operated by piston and cylinder 86, 89. (For Figures see next column.)
Patent GB-982623-A (GB)
Title: Method for the suppression of harmful recrystallisation of glass powders on heating
Inventor: SCHILL FRANTISEK
IPC: C03C1/00
Filed: 1962-09-05
Abstract: A method for the suppression of harmful recrystallization in glass powders when sintered comprises adding to the glass powder a material consisting of at least boric anhydride and/or phosphoric anhydride and/or one or more compounds of glass forming oxides (defined) and/or one or more of the oxides and/or hydroxides and/or carbonates of the alkali metals (defined), the material on heating forming a compound which prevents recrystallization of the glass.  Suitable additives include boric, orthophosphoric or metaphosphoric acids their anhydrides or their salts, e.g. their Na, K, Li, Ca, Mg, Zn, Al or Fe salts or Na, K or Li silicates of the water glass type.  Substantial amounts of fluorine, chlorine and sulphur compounds or free carbon or sulphur should not be present.  In an example, a foam glass is made from a basic glass, consisting of 71.8% SiO2, 0.9% Al2O3, 0.1% Fe3O3, 9.7% CaO, 3.7% MgO, 13.3% Na2O and 0.5% SO3, which is ground in a ball mill with 7 parts Na3PO4 as a recrystallization preventing substance and 0.2 parts active carbon black as foaming agent to each 100 parts of the basic glass.  The mixture is heated in metal moulds or on a belt until it sinters and foams up and is then cooled.
Patent GB-193582-A (GB)
Title: Improvements in devices for preventing corrosion or pitting in steam generators and the like
IPC: C02F1/48
Filed: 1921-12-19
Abstract: 193,582. Morrison, J. W., and Cross, W. A. Dec. 19, 1921. Corrosion, preventing.-Devices for preventing corrosion in boilers &c. comprising a plate B of zinc or other electropositive metal in metallic contact with the boiler shell, are fitted with spring contact plates D in metallic connection with the zinc plates and the stud C by which they are attached to the shell A, the arrangement being such that the contacting parts E of the spring plates follow up the exposed surface of the zinc plates as the latter dissolves. In the arrangement shown in Fig. 4, the ends of the spring plate D are turned inwardly so as to bear upon the zinc plate B at right-angles. In other modifications, the spring plate is made starshaped with radially projecting contact arms or is provided with a central screwed boss for engaging the stud C.
Patent GB-188246-A (GB)
Title: Improvements relating to coal dust firing
IPC: F23K3/00
Filed: 1921-12-20
Abstract: 188,246. Gill, H. A., (Vereinigte-H³ttenwerke-Burbach-Eich-Dudelingen). Dec. 20, 1921. Fuel, feeding.-Coal dust is mixed with a quantity of air insufficient for complete combustion, and the mixture is conducted to the combustion space by a secondary quantity of air, the primary or secondary air or both being heated to such an extent that the fuel is partly gasified before reaching the nozzle. The apparatus shown comprises a hopper a from which the fuel is fed by a rotating corrugated cone c to the jacketed mixing chamber b. Heated air enters the spaces e, e<1> through a pipe h and valve f, and passes into the chamber b through the inclined slots g. Partial gasification of the fuel takes place, and the resulting mixture is delivered to the nozzle i by a further supply of air from the valve l. Explosion valves are fitted to the mixing chamber b.
Patent GB-342020-A (GB)
Title: Improvements in or relating to clamping devices particularly for securing pump barrels in drums and similar receptacles
IPC: B67D7/04
Filed: 1929-11-09
Abstract: 342,020. Pipe joints. HILL, S. D., 66, Fitzwilliam Street, Sheffield. Nov. 9, 1929, No. 34230. [Class 99 (i).] A clamping device for securing a tubular article in an aperture, e.g. a pump barrel in the aperture of a barrel, drum &c. comprises a conical sleeve 16 split at 17 and carrying a tube 10, a hook 23 operated by a thumb nut 25 and screw 24 serving to draw the sleeve into the aperture and compress the two halves on to the tube. A cap 29 carries a drip tray 19. The hook may grip within the rim of the aperture. In an alternative form the conical sleeve may consist of an upper collar from which depend a number of hinged segments.
Patent GB-809930-A (GB)
Title: Improvements in or relating to calculating devices
Inventor: FARLIE DENNIS JOHN GERALD
IPC: G06G1/00
Filed: 1955-11-30
Abstract: 809,930. Calculating-apparatus. GENERAL ELECTRIC CO. Ltd. Nov. 30, 1956 [Nov. 30, 1955], No. 34320/55. Class 106 (1).  Apparatus for determining the statistical significance of different proportions of defective items in two samples of items drawn from different groups, tests whether or not (x 1 - x 2 )N¢ is less than tα2 - ¢, where sin<SP>2</SP>x i  is equal to the proportion of defective items in a sample, N is the harmonic mean of the two sample sizes and tx is the normal deviate corresponding to a twotailed test at a chosen level of significance. Two semi-circular members 2, 3 are set relative to a base 1 by means of the " square root " scales shown, in accordance with the numbers of defective items in the two samples and the sample sizes, so that the angles AOK and DOL equal x 1  and x 2 . The angle BOE, where OE is the centre-line of the member 3, is then equal to x 1 -x 2 , and by means of a scale OB, a point U may be found in the quadrant DOE having polar co-ordinates N¢, x 1 -x 2 . Curves 4 of the type r# = constant are marked on the quadrant DOE and correspond to different levels of significance. Thus the significance of the different proportions is represented by the position of the point U in relation to these curves. The scale OB for N may alternatively be linear or of other form providing the curves 4 are correspondingly modified. A table of harmonic means may be drawn on the back of the device to determine N. In a modification, the radial edges of the members 2 and 3 bear linear scales, it being shown that the angle 2(x 1  - z 2 ) may be found by setting the members in accordance with the differences between the proportions of non-defective and defective items. The various radial scales may be replaced by concentric circles on a transparent disc.
Patent GB-194028-A (GB)
Title: Improvements relating to twisting frames
IPC: D01H1/36
Filed: 1921-12-21
Abstract: 194,028. Pears, R., and Bell, W. M. Dec. 21, 1921. Flyer flames; winding-on motions. -A roving frame is adapted for use as a twisting frame for separate yarns by eliminating the drawing rollers, faller screws, and retaining rollers, and using the differential motion of the roving frame to drive the bobbin at a variable speed. The threads D are led through a twisting tube d<3> and flyer A to the bobbin B, the bobbin and flyer being driven at different speeds. The flyer is driven direct by belt and gearing from the main shaft E and the bobbin is driven at different varying speeds through differential C and countershaft b. The differential is driven from a friction wheel c which can be moved by means of a cam c<3> between two oppositely driven friction discs c<1>, c<2> to vary the speed.
Patent GB-803042-A (GB)
Title: Improvements in the production of butadiene
IPC: C07C5/327
Filed: 1956-11-13
Abstract: Butadiene is prepared by the single-stage dehydrogenation of n-butane or a mixture of n-butane and n-butene or -butenes wherein the concentration of 1-butene in the feed is increased by adding 1-butene to the n-butane or mixtures of n-butane and recycle n-butene from the butadiene recovery step.  This may be accomplished by adding 1-butane, prepared, for example, by dimerization of ethylene, to the feed, or the recycle of unconverted butane and butenes, remaining after removal of butadiene from the product, may have its 1-butene content increased by removing a part or the whole of the 2-butene present. The process is carried out conventionally, e.g. at 570-600 DEG  C. and 150-200 torr pressure in the presence of a chromia-alumina catalyst.  Examples illustrate the increased yields obtained by the increase in 1-butene content.
Patent GB-1281586-A (GB)
Title: Impact tool for setting impact-driven fasteners
Inventor: BRATSCHI KONRAD
IPC: B25C3/00
Filed: 1969-07-09
Abstract: 1281586 Packaging fasteners K BRATSCHI 9 July 1969 [9 July 1968] 34689/69 Heading B8C [Also in Division B4] A nail or impact screw magazine for a driving tool (see Divisions B4-B5) is in the form of a disposable strip 8 apertured at 9 to receive the nails &c. and having a sawtooth formation to co-operate with indexing means 12-15 in the tool. The magazine is made of readily frangible plastics &c. to enable emptied portions to be snapped off and may be transparent. A " fin " 10 in each aperture may assist in retaining the nails. A blank portion 29 may be provided at the end of the strip.