baber/WOPTO huggingface dataset:
Patent GB-453134-A (GB)
Title: Manufacture of wetting and foaming agents
Filed: 1935-03-04
Abstract: Metallic salts of the sulphuric esters of alcohols are prepared by the direct union of alcohols having at least eight carbon atoms with the reaction products of sulphurtrioxide and metallic chlorides.  The products are stated to have wetting, sudsing, emulsifying and detergent properties.  The finely ground reaction product of sulphur trioxide and potassium chloride may be slowly introduced into a mill containing lauryl alcohol, and the temperature prevented from rising above 30 DEG  C.  The product may be worked up (a) by adding water containing sufficient alkali to neutralize the mixture or (b) by treating with hot ethyl alcohol containing alkali, filtering and crystallizing.  Any unattached higher alcohol may be removed by means of ether.  Instead of potassium chloride, chlorides of ammonium, sodium, manganese and nickel may be used.  The reaction may be effected in the presence of inert solvents such as carbon tetrachloride and dichlorethane. Alcohols derived from fats, tallow and oils, including those obtained by hydrogenation may be used as starting materials.  A sample has been furnished under Sect. 2 (5) which is obtained by treating abietyl alcohol prepared by the hydrogenation of rosin, with the sulphonating agent.ALSO:Metallic salts of sulphuric esters of alcohols containing at least eight carbon atoms prepared by the direct addition of the alcohols to the reaction products of sulphur trioxide and metallic chlorides, are stated to have emulsifying properties.  The ammonium, sodium, potassium, manganese and nickel salts are mentioned.
Patent GB-984322-A (GB)
Title: Improvements in the production of formaldehyde copolymers
IPC: C08G2/26
Filed: 1963-02-20
Abstract: A polyoxymethylene oligomer is activated with high energy radiation and copolymerized in the solid state with a stabilizing monomer which will react with the terminal oxymethylene radicals of a polyoxymethylene chain and prevent or retard depolymerization thereof.  Trioxane is the specified alogomer while cyclic ethers, unsaturated esters of formula <FORM:0984322/C3/1> or of formula CH2=C(R3(-C)=O)-OR2 where R2 is a C1-5 alkyl, R3 is a hydrogen or methyl and n is 0 to 10, and vinyl compounds of formula R4-CR5=CH2 where R4 is phenyl, acylamide, pyridyl, pyrrohydinyl, C1-10 alkyl, or cyano and R5 is hydrogen or methyl-styrene comonomers.  Specified comonomers are epichlorhydrin, propylene oxide, diethyl maleate, N-vinyl pyrrolidone, 2-vinyl pyridine and vinylamide.  It is preferred that 0.1 to 5% comonomer is blended with trioxane which has been heated above its melting-point, the mixture cooled below its solidification temperature, irradiated with about 0.01 to 2 megorads of high energy radiation and heated at 25 to 62 DEG  C. for 0.5 to 50 hours.  Alternatively, the trioxane may be irradiated at room temperature partially polymerized at 25 to 62 DEG  C., blended with the comonomer at above the melting-point of the mass and polymerized at 25 DEG  to 62 DEG  C.
Patent GB-1160794-A (GB)
Title: Adjustable Frequency Atomic Frequency Standard
Inventor: ARNOLD JAMES TRACY
IPC: H03L7/26
Filed: 1967-02-13
Abstract: 1,160,794. Stabilized frequency standard. VARIAN ASSOCIATES. 13 Feb., 1967 [18 Feb., 1966], No. 6826/67. Headings H3A and H3F. In a frequency adjustable stabilized frequency standard, Fig. 1, the output from the oscillator 11 is fed to a circuit 15 which translates the signal frequency by a predetermined increment to produce a signal of frequency corresponding to that of an atomic frequency resonator. The two signals are then compared, and the resulting error signal is used to tune the oscillator 11. Before frequency translation, the output of the oscillator is phase modulated by a low frequency oscillator from source 14 which is extracted by the frequency comparator 13 to provide the error signal. As described, oscillator 11 produces a signal of the order of 5 Mc/s. A first output is phasemodulated by unit 35 and then multiplied by twenty-four in unit 32 and by fifty-seven in unit 33 to produce a phase-modulated signal of 6840 Mc/s. A second output is fed to synthesizer unit 31 which produces a signal of 5<SP>6</SP>/ 19  Mc/s.Œ 34n c/s., and the two signals are then mixed to produce at the output of unit 33 a signal of 6834<SP>13</SP>/ 19  Mc/s. Œ34n c/s. In order to change the frequency of oscillator 11, the integer n is varied between 1 and 6, the resulting change in error signal from comparator 13 then adjusts oscillator 11 to a new frequency to restore the error signal to zero. The synthesizer 31, Fig. 2, comprises a mixer 44 to which are fed the 5 Mc/s. output from the oscillator 11 and a signal of <SP>6</SP>/ 19  Mc/s. Œ 34n c/s. from oscillator 45, the integer n being selected by a suitable switching circuit. In order to stabilize the oscillator 45 the 5 Mc/s. is fed to dividers 34 to produce a 1 Mc/s. which is then added to the 5 Me/s. in mixer 36 to give 6 Mc/s., this is then divided by nineteen by units 37, 38 to produce a <SP>6</SP>/ 19  Mc/s. input to mixer 39. The output from divider 34 is also fed to a divide by ten stage 41 and variable divider 42 to produce an output of 34n c/s. which is also fed to mixer 39. The resulting output from mixer 39 is then compared with that from oscillator 45 to produce an error signal to control the oscillator. The divider 42, Fig. 3 (not shown), comprises two stages which divide the 100 kc/s. signal down to 2040 c/s. and four 7-position switches (52) which select various combinations of four divider stages (53, 54-55-56) so as to divide the 2040 c/s. signal down to 34, 68, 102, 136, 170 or 240 c/s., i.e. 34n where n is 1, 2, 3, 4, 5, 6.
Patent GB-1171994-A (GB)
Title: Paper MAchinery
IPC: D21F1/36
Filed: 1967-02-13
Abstract: 1,171,994. Papermaking. BLACK CLAWSON CO. 13 Feb., 1967 [16 Feb., 1966], No. 6843/67. Heading D2A. [Also in Division F2] A roll 10 Fig. 1, for use in supporting a paper machine forming wire, comprises a rotatable tube 20 mounted on a stationary shaft 13, each end of the latter is supported by a pin 35, Fig. 2, which is carried by a yoke 40. The yoke is pivoted on a pin 41 which passes through a member 42, the latter being supported by a rail 11. Vertical adjustment of the roll is by means of a screw 45 and nut 47. In use pressurised fluid is supplied to a clearance 22 between the tube 20 and the shaft 13, via a supply-tube 25; the escape of the fluid at each end of the tube 20 is restricted by means of a collar 30 which also serves as a fluid thrust bearing. Each collar 30 is provided with an arcuate shroud 33 which prevents the radial spraying of fluid from the ends of the space 22. A tension-rod 50 or a turn-buckle 55, Figure 4, may be provided to compensate for downward deflection of the roll. A suctionbox of a paper machine may be provided with a number of rolls 10 to form a "live" surface. When wide rolls 10 are used, more than one tube 20 may be mounted on each shaft 13 so as to allow the shaft to also be supported at locations intermediate its ends.
Patent GB-1259738-A (GB)
Title: Flotation process
Inventor: VERHEYDEN ALBERT
IPC: B03D1/02
Filed: 1970-02-12
Abstract: 1,259,738. Froth flotation. UCB (UNION CHIMIQUE-CHEMISCHE BEDRIJVEN) S.A. 19 April, 1971 [12 Feb., 1970], No. 6850/70. Heading B2H. A froth flotation process particularly for purifying oxide minerals comprises using a collector selected from compounds having the formulae:  wherein X is the unsaturated hydrocarbon radical of the acid obtained from calcium citrate by controlled pyrolysis and acidification as disclosed in Specification 1,082,179; X' is the saturated radical corresponding to X; R is C 1-20  alkyl; R', R", R"', and R"", which may be the same or different, are H or C 1-20  alkyl, cycloalkyl, aralkyl, alkaryl, or aryl, at least one being other than H; and M is Na, K, or NH 4 . The collector is used in an amount of 300-4000g per ton, preferably 500-1000, and at ambient temperature or higher. The pH is adjusted with sulphuric acid, sodium hydroxide, sodium carbonate, or calcium hydroxide to a value depending on the mineral to be recovered.
Patent GB-783555-A (GB)
Title: Improvements in or relating to laminated structures and methods for making the same
IPC: B32B27/00
Filed: 1955-03-09
Abstract: A coating composition contains a copolyester of 65 parts of ethylene terephthalate and 35 parts of ethylene sebacate, and a heat-reactive para-tertiary butyl phenol-formaldehyde resin, dissolved in acetone. Specifications 578,079, [Group IV], 711,279 and 711,280 are referred to.
Patent GB-1304444-A (GB)
IPC: D04H3/153
Filed: 1970-02-13
Abstract: 1304444 Non-woven fabric; textile treating apparatus VEPA AG 13 Feb 1970 [17 Feb 1969 25 Feb 1969] 6962/70 Headings DIL and D1R A non-woven fabric is made from a fleece containing at least two different sorts of endless filaments, at least some of which are bicomponent filaments, by passing the fleece over a sieve drum whilst passing a hot fluid therethrough so as to cause shrinking or softening of the filaments, mechanically compressing the fleece during or after heating, and cooling the compressed fleece. As described, the fabric is bonded on a baffled sieve drum 2 through which heated air or steam is sucked with the fabric being pressed against the drum by an endless belt 9. The bonded fabric is cooled by gas flowing through aperture 10 or by cooling rolls 11.
Patent GB-1139289-A (GB)
Title: Improvements in or relating to centrifugal casting machine
IPC: B22D13/02
Filed: 1967-02-14
Abstract: 1,139,289. Centrifugal casting-machines. CENTRE DE RECHERCHES DE PONT-AMOUSSON. 14 Feb., 1967 [10 March, 1966], No. 7016/67. Heading B3F. In the centrifugal casting of pipes T in a mould 1 supported on a carriage C and movable towards and away from a pouring trough B, the pipe T is extracted from the mould 1 by an automatically operated extractor E carrying tongs P and movable towards and away from the mould carriage C, the control device for automatically operating the extractor E including photo-electric cells 8 and 9 actuated by infra-red radiation from the molten and solidifying metal of the pipe T. Cell 8 operates when the socket end of the pipe is extracted and cell 9 is initially retracted by a spring biased jack 12, or alternatively covered by a retractable screen, during the pouring operation and then positioned or uncovered during the solidifying stage to " view " the smooth end of the pipe. During normal extraction the cell 9 senses the extraction of the smooth end of the pipe but, in the case of faulty extraction or fracturing of the pipe, cell 9 in conjunction with cell 8 acts through the control device to either reverse the movement of the extractor E to make another attempt at an extraction or the extracting operation of the machine is stopped to enable the mould to be manually cleared. The control device also comprises a contactor 14 operated when the mould carriage C reaches the end of its travel, and two contactors 15 and Cc spaced apart at one end of the track on which the extractor E moves. The extractor E is moved by a jack V. The control circuit of the control device (Fig. 4, not shown) includes a starting push-button (20), a master relay (RA) and various switches operated by the contactors 15 and Cc to control the direction of movement of the extractor E. The contactors may also be used to change the speed of the extractor E. During extraction the pipe T is supported on retractable supports 7.
Patent GB-692454-A (GB)
Title: Improvements in or relating to the manufacture of polycarboxylic acids
IPC: C07C51/27
Filed: 1951-03-28
Abstract: Polycarboxylic acids containing mellitic acid, and pyromellitic acid obtainable therefrom by heating with water-vapour on a carrier of fluidized coke breeze as described in Specification 692,440, are made by the action of nitric acid on the fluidization residue from the latter process.  The process can be continuous. In an example, the hot solution of polycarboxylic acids obtained by oxidizing coke breeze with nitric acid has coke breeze added, followed by drying and fluidizing in presence of steam at 280-290 DEG  C., the pyromellitic acid produced being entrained by the steam and separated by hydrochloric acid.  The fluidization residue is again oxidized with nitric acid, the filtered solution being treated again as above.
Patent GB-880693-A (GB)
Title: Improvements in and relating to carbon articles
IPC: C04B41/62
Filed: 1958-03-07
Abstract: The permeability of shaped carbon bodies, e.g. piping, is reduced by impregnating the body at a pressure in the range 35-1000 p.s.i.g. with a thermosetting resin, polymerizing and curing the resin in situ, and decomposing the cured resin by slowly baking the body at above 270 DEG C.  Resins are furan-, or furfuraldehyde-ketone condensation products, e.g. a mixture of hydrogenated mono- and di-furfuryl acetone, or other ketones may be mesityl oxide, diacetone alcohol, methyl ethyl ketone, or acetonyl acetone, furfuraldehyde condensation products, furfuryl alcohol-, or phenol-aldehyde condensation products, e.g. phenol-formaldehyde, or urea-aldehyde condensation products.  The resins intumesce above the curing temperature, should have a coking value of 20%, and polymerization catalysts, e.g. benzene-, or toluene-, sulphonic acids, hydrochloric acid, or ethyl sulphate may be included in the resin, which should have a viscosity of 50 centipoises.  The bodies are impregnated with resin, which may be heated, and the resin is cured by heating under 35-100 p.s.i.g. at 225- below 270 DEG C. for 24 hours at say 10 DEG C./hr. rise.  The body is held until gas evolution ceases, and cooled.  After cooling, the resin is carbonized by heating under non-oxidizing conditions to at least 1000 DEG C. at a temperature rise 5-30 DEG C./hr.  The treatment may be repeated, with intermediate removal of surface deposits, before re-impregnation. The carbonizing should be effected in a sagger with the body covered with granular oxidation-resistant material, e.g. coke.  The resultant added carbon may be 5-8%, and the body may be graphitized at not above 3000 DEG C.
Patent GB-1349112-A (GB)
Title: Green-yellow monoazo acid dyes
IPC: C09B69/04
Filed: 1972-02-17
Abstract: 1349112 Monoazo dyes E I DU PONT DE NEMOURS & CO 17 Feb 1972 [19 Feb 1971] 7350/72 Heading C4P New acid monoazo dyes of formula wherein X is H, an alkali metal, ammonium or substituted ammonium and of R 1  and R 2  is Cl, the other being H are prepared by azo coupling and are used to colour nylon carpeting in greenyellow shades.
Patent GB-928128-A (GB)
Title: Process for the production of the methyl ethers of compounds of the yohimbane series
IPC: C07D/
Filed: 1962-02-26
Abstract: Methyl ethers of compounds of the yohimbane series are produced by reacting the corresponding compounds with free alcoholic hydroxyl groups, other than yohimbine and a -yohimbine, with diazomethane in the presence of an aluminium alcoholate.  In the examples, the compounds methylated are (1) methyl reserpate, (2) rescidic acid methyl ester and (3) methyl deserpidate. Another yohimbane compound specifically mentioned is seredin. Specification 928,129 is referred to.
Patent GB-833620-A (GB)
Title: Improvements in folding hatchway covers or decks
IPC: B63B19/203
Filed: 1958-03-07
Abstract: 833,620. Folding decks and hatch covers. WESER A.G. March 7, 1958 [March 7, 1957], No. 7503/58. Class 113. In a folding deck or hatchway cover comprising a plurality of cover elements 1 adjacent ones of which are pivotally connected together at 2, a cable 5 being provided for pulling the elements into a folded condition, the cover elements are provided with rollers 7, 71 adapted in the extended condition of the hatchway cover or deck to rest on a guide rail 8 and which also serve as guide pulleys for the cable. The left hand side of Fig. 1 shows a folding deck with an odd number of cover elements 1, the element nearest the folding side 3 being guided in a guideway 9. The right hand side of Fig. I and Fig. 2 show a deck with an even number of cover elements, the one adjacent the folding side 3 being pivotally connected to the ship's structure. The lower half of Fig. 2 shows how, in the extended condition of the cover, the cable 5 engages below and above the separate rollers 7 and 71. The rollers 7 are each provided with a groove for the cable.
Patent GB-629688-A (GB)
Title: Spray generator
IPC: A01M13/00
Filed: 1947-03-19
Abstract: 629,688. Liquid-fuel burners. TRIGGS, W. W. (Homestead Valve Manufacturing Co.). March 19, 1947, No. 7610. [Class 75(i)] [Also in Group XXIX] In a spray producing machine of the type in which a liquid (e.g. water) is heated to produce a vapour pressure to expel a mixture of vapour and liquid from the machine, variations of pressure in the supply pipe 2 are prevented from reaching the machine by a pressure reducing valve 3. A motor 63 drives a pump 4 which draws a liquid, such as an insecticide, from a vessel 32 along a supply pipe to a mixing chamber 18 and discharges it mixed with water to a heating coil 5 which is heated by a burner 40 supplied with fuel from a vessel 41 by a second pump 44 connected to the first pump 4. The fuel passes to the burner through a flexible hose 51 wound with fabric reinforcing cords braided to cross one another with an included angle of less than 45 degrees forming a pulsation absorber or an alleviator that expands longitudinally and not radially and functions, when the pump 44 is suddenly stopped, to eject a slug of fuel from the burner thus preventing dribbling of the fuel.
Patent GB-1348591-A (GB)
Title: Disazo dyestuffs a process for their manufacture and their use
IPC: C09B31/14
Filed: 1972-02-18
Abstract: 1348591 Water-insoluble disazo dyestuffs CIBA-GEIGY AG 18 Feb 1972 [4 March 1971] 7635/72 Heading C4P Novel dyestuffs of the formula (wherein X and Y are each H, halogen, C 1-5  alkyl or C 1-5  alkoxy; B is an aromatic radical containing NO 2  meta to -N=N- which is attached to -C 6 H 3 XY and optionally containing further substituents, and R 1  and R 2  are each H or optionally substituted hydrocarbon radicals) are prepared by coupling a diazotized 3-vitro-4-amino-1,1<SP>1</SP>-azobenzene with an appropriate barbituric acid. The dyestuffs are used to dye synthetic fibres in yellow shades.
Patent GB-471926-A (GB)
Title: Improvements in cooling systems for aircraft engines
IPC: B64D33/10
Filed: 1936-03-13
Abstract: 471,926. Propelling aircraft. ELLOR, J. E. March 13, 1936, No. 7663. [Class 4] A liquid-cooled aircraft-engine is mounted outside of the aircraft wings and has radiators arranged in convergent - divergent tunnels accommodated in the wing and forward of the front or main wing-spar ; the inlet to the tunnel is disposed in the leading edge and the outlet beneath the wing such that air passes through the radiator with a downward inclination. As shown, an engine is situated in a fuselage A and is cooled by a liquid medium which is passed through radiators B<1> housed one in each wing. The radiators are inclined as shown and the area of the exit C<2> may be under the pilot's control. Heat may be added to the escaping air stream as described in Specification 454,266, either by leading the exhaust manifolds D through the channels or allowing the exhaust to discharge into the channels. The manifolds are led through tunnels D<1> having open front ends so that air can pass therethrough.
Patent GB-250212-A (GB)
Title: Means for securing a wooden handle in a tool
IPC: B25G3/28
Filed: 1926-03-20
Abstract: 250,212. Gentil, T. Perret-. April 1, I925, [Convention date]. Void [Published under Sect. 91 of the Acts]. Wedge expanding-devices for socket fixings.- Handles are secured to hammer heads &c. bv a device consisting of two or more plates provided at their lower ends with bevelled cutting edges and slotted to engage each other crosswise. The plate 10, Fig. 1, with cutting edge 11 bevelled on both sides is slotted at 12, and the plate 13, Fig. 2, is slotted at 14 and the edge bevelled on opposite sides at 15, 16, so that when the two plates are fitted together. as shown in Fig. 4, and driven into the handle 17, tha divided ends of the plate 13 spread apart. The plate 10 may be formed with projections engaging the edge of the tool eye.
Patent GB-565562-A (GB)
Title: Fluid pressure regulating apparatus
IPC: G05D16/06
Filed: 1942-06-08
Abstract: 565,562. Valves. JACKSON, L. MELLERSH-. (Grove, M. H., and Annin, D.H.). June 8, 1942, No. 7811. [Class 135] Pressure regulating apparatus comprises a diaphragm 49, acted on oppositely by a spring 64 and the fluid pressure in the chamber 62. Movement of the diaphragm to the left causes an abutment 87 to unseat a ball valve 76 through pins 86, 84 carried by a piston 83, so that fluid from the chamber 62 passes through a passage 93 and a groove 92 in the piston 83 and escapes to the atmosphere through the shell 59, bearing 69 and opening 68. When the diaphragm is moved to the right by the spring 64, a member 78 unseats a ball valve 98, and pressure fluid from an inlet 46 passes to the chamber 62 through a passage 102 and groove 107 in a piston 104. A cap 13 may be turned to move a follower 66 to vary the compression of the spring 64, and the position of the abutment 87 may be adjusted to vary the margin between the pressures at which the valves 76, 98 are unseated. Specification 447,519 is referred to.
Patent GB-369738-A (GB)
Title: Improvements in or relating to adjustable doctor blades for printing machines
IPC: B41F9/10
Filed: 1931-03-13
Abstract: 369,738. Inking-apparatus, MUNRO, R. C. and MUNRO, Ltd., R. W., 103, Cornwall Road, South Tottenham, London. March 13, 1931, No. 7841. [Class 100 (ii).] A doctor blade for use in a printing-machine is supported so that it is adjustable about an axis substantially coinciding with the operative edge of the blade, whereby the edge is always held in the same position relatively to the coacting cylinder, irrespective of the angular adjustment of the blade. A doctor blade 1, which extends the whole length of the plate cylinder, is clamped by screws to a bar 3 which is inserted at each end in a clamp 6 formed integrally with a segment 7. The segment 7 is pivotally connected to a slide 8 by means of a ball 10 provided with a shank 11 rigidly secured in the segment and housed in a boss 12 on the slide 8. The ball 10 is retained in the recess by means of a fibre washer 13 and a clamping disc 14 secured by screws 15. The axis of the ball pivot coincides with the working edge 9 of the doctor blade 1. The segment 7 is provided with a handle 16 and an arcuate guide-slot 17. A stud 19, screwed into the slide 8, is provided with a split portion 20 which engages in the slot 17, and a screw 18 engaging the stud 19 is adapted to lock the segment 7 in selected positions by expanding the split portion 20. Each slide 8 is mounted in guides 21 formed on, or screwed to, the end of a long supporting arm, and is provided with a nut 23 situated between two bosses 24, 25 on the guides 21. A screw 26, provided with a graduated collar 27 to facilitate setting, engages the nut 23, and is slidably supported by the bosses 24, 25. The screw 26 is held resiliently against longitudinal movement by a coiled spring 29 which is retained against the boss 25 by a washer 30 and nut 31 on the end 28 of the screw. The doctor blade 1 can yield against the resistance of the springs 29. The rough adjustment of the doctor blade is achieved by rocking the long supporting arms by such means as worm gearing. The ball joints at each end allow of independent adjustments. Each clamp 6 may be provided with adjusting screws to adjust the doctor blade to and from the cylinder.