baber/WOPTO huggingface dataset:
Patent GB-1521200-A (GB)
Title: Cathodic electrocoating compositions and processes
IPC: C25D13/06
Filed: 1976-12-03
Abstract: 1521200 Electrophoretic cooling composition; aminoplast SCM CORP 3 Dec 1976 [22 Dec 1975] 50584/76 Heading C3B and C3R A cathodic electrocoating composition comprises in aqueous dispersion: (I) a cathodically depositable reaction product of an epoxy resin and a monoamino-alcohol or -phenol which is substantially free of unreacted epoxy groups, has an average of # 2 reactive OH groups and # 0À2 pendant C5-20 hydrocarbon radical per molecule; (II) 0À05-1 part per part by weight of I of a cathodically co-depositable aminoplast resin containing free acid groups; and (III) 20-150 milliequivalents per 100 g. of I + II of an anion of a water soluble acid. III induces and stabilises the cationization of the binder. The dispersion has a pH of 2-7. A typical I is prepared by reacting a diglycidyl ether of bisphenol A with diethanolamine. II may be obtained by reacting a hexamethylol melamine with a lower alkanol and an aromatic hydroxy acid. Alternatively II may be obtained by (a) condensing benzoguanamine with paraformaldehyde using a hexamethylenetetramine catalyst at pH 8-8À6 and completing the condensation in the presence of maleic anhydride at pH 4À3-4À7. The produce is reacted with a mixture of salicytic acid and 2-butoxyethanol to obtain the acid group containing resin. III may be lactic acid.
Patent GB-1189607-A (GB)
Title: Purification Process
IPC: C07C7/11
Filed: 1968-10-25
Abstract: 1,189,607. Purifying N-methylpyrolidone. MONSANTO CO. 25 Oct., 1968 [25 Oct., 1967], No. 50784/68. Heading C2C. [Also in Division C5] In the example, N-methylpyrolidone which has been used in acetylene purification and contains polymeric contaminants is purified by adding about 10 wt. % of " flux oil " (a high-boiling C 13+  aromatic hydrocarbon mixture), distilling the resulting mixture and recovering purified N-methylpyrolidone overhead. The " flux oil " may be replaced by fatty oil.
Patent GB-1191678-A (GB)
Title: Improvements in Method and Apparatus for attaining the desired Configurations of Electrical Coils
IPC: H02K15/00
Filed: 1967-11-10
Abstract: 1,191,678. Making dynamoelectric machines; jointing. GENERAL ELECTRIC CO. 10 Nov., 1967 [13 Jan., 1967], No. 51160/67. Headings B3A, B3Q and B3V. A method of pressing back the turns of a coil having portions in slots in a magnetic core and portions extending beyond the slots comprises disposing the core and coil in proximity to pressure transmitting medium and imparting pressure waves to the medium for forming portions of the turns into a desired configuration and location. As applied to pressing aluminium or copper turns into the stator slots of a dynamoelectric machine and also pressing the end parts 16 of the turns outwardly and towards the core, a polyethylene &c. bag 26, Fig. 1, is disposed in the stator and clamped by a ring 27 to a deflector 28 fixed to the base of a chamber 23. An opposite deflector (not shown) may be located at the top of the container. Water 21 or an unhardened insulating and bonding material, e.g. a synthetic polyester resin, in a solution is introduced into the bag through a tube 29 which may include a one-way valve. Air vents may be provided in the upper portion of the bag. An arc is discharged across electrodes 33, 34 to form the pressure wave which ruptures the bag as the water &c. surges against the ends of the turns and through the stator slots. Depending on the composition of the medium 21, its state may be changed in part to a vapour or gas. If water is used, moisture remaining may be removed by heating the core, e.g. to 150‹ C. for four hours. If a bonding material is used, filling the voids in the turns and providing a film of insulation on the slot walls to supplement the insulation already in place, this may be hardened by baking for two hours at 200‹ C. An alternative apparatus, Fig. 4, primarily for pressing back the side portions 14 of the turns, includes an upper deflector 55 and triangular side deflectors 59 covering the stator slots not in use. A guide 61 inhibits bending back of the lower ends of the turns. The expanding force may change the turns to a non- circular cross-section, Fig. 8 (not shown). A rubber diaphragm connected to the plate 51 may separate the medium in the chamber 23 from a different medium in the guide 61 which need not be capable of supporting a discharge arc. In a further apparatus, Fig. 9, a flexible container 66 has slits 69 aligned with the stator slots housing the turns, empty slots being shielded by imperforate parts of the container.
Patent GB-1319257-A (GB)
Title: Means for avoiding corona discharges in rotary electrical machines
IPC: H02K3/40
Filed: 1970-10-28
Abstract: 1319257 Coils for dynamo-electric machines ALLMANNA SVENSKA ELEKTRISKA AB 28 Oct 1970 [29 Oct 1969] 51162/70 Heading H2A To avoid corona discharge between winding end turns and neighbouring earthed machine parts during high voltage testing of the winding, a portion of each coil end is provided with a conducting layer which is earthed through a voltage-dependent impedance element having a negative voltage characteristic. As shown in Fig. 1, the conducting layer 9 on part of a coil side 5 is connected to a machine part 7 by a resistor element 8. The conducting layer may extend over substantially the whole of the end of the coil as shown at 12 in Fig. 2. In this arrangement the part of each coil lying in a core slot 1 is surrounded by an earthed conducting coating 13 which is connected to the layer 12 by a voltage-dependent resistive coating 11 on the coil insulation. A conducting layer extending over part of a coil side as shown in Fig. 1 may have voltage-dependent resistive coatings adjacent both ends Fig. 3 (not shown), the one nearest the core being connected to a coating similiar to 13 in Fig. 2. The impedance element alternatively may be capacitive or inductive.
Patent GB-1089068-A (GB)
Title: Improved process for producing surface-active agents
IPC: C07C43/11
Filed: 1965-12-03
Abstract: Surfactants comprising at least one ethyleneoxy linkage are prepared by a process which comprises, (1) reacting a C10- 20 alkanol with 0.2-6.0 moles of ethylene oxide per mole of alkanol, in contact with an acidic catalyst, to produce a monoalkyl ether of a polyoxyethylene glycol intermediate, (2) contacting the intermediate with a wash medium comprising water at a temperature greater than the cloud point of the intermediate, and below 100 DEG  C., sufficient water being used to extract polyethylene glycols from the intermediate, and (3) thereafter converting the washed intermediate to a surfactant which comprises a monoalkyl ether of a polyoxyethylene glycol or the sulphate salt thereof.  By "cloud point" is meant the temperature at which the monoalkyl ether intermediates become insoluble in water. The alkanols used as starting materials may be branch or straight chain with a primary, secondary or tertiary OH group.  Specified catalysts include H2SO4, H3PO4, the fluorides and halides of B, Al, Fe, Ti and Sn, and complexes of such halides with ethers.  Step (1) is suitably conducted between 0-80 DEG  C., and at pressures up to 50 p.s.i.g.  The intermediate obtained has the average formula RO-(CH2CH2O)x-H, where R is C10- 20 alkyl and x is an integer from 1-6.  The washing step is suitably effected at least 10 DEG  C. above the cloud point of the intermediate, suitably with 2 or 3 separate washing steps.  Step (3) involves either the conversion of the intermediate to a compound of average formula RO-(CH2CH2O)y-H, where R is as defined, y is an integer from 4-20, and is larger than the x of the intermediate, by reaction of the intermediate with Et2O in contact with a basic catalyst; or the conversion to a compound of average formula RO-(CH2CH2O)x-SO3-M+ where R and x are as defined and M+ is at least one monovalent cation, e.g. Na+ or NH4+. Both of these conversions are effected by conventional procedures.
Patent GB-1038489-A (GB)
Title: Improvements in or relating to transistor circuits
Inventor: FOWLER MICHAEL LAWRENCE
IPC: H03F3/30
Filed: 1963-12-31
Abstract: 1,038,489. Transistor pulse amplifying circuits. STANDARD TELEPHONES & CABLES Ltd. Dec. 31, 1963, No. 51336/63. Heading H3T. In a transistor pulse amplifying circuit comprising a common-emitter stage T1 direct coupled to an emitter-follower T2, a diode D is connected across the base-emitter path of the transistor T2, being so poled as to be conductive and feed power to the output load when the transistor T2 is driven non-conductive. A resistor R3 in the collector circuit of the transistor T2 limits the current which can flow in this transistor when driven conductive to a safe value.
Patent GB-1223764-A (GB)
Title: Roller runners for a sliding door, a sliding window, or the like
IPC: E05D15/06
Filed: 1968-10-30
Abstract: 1,223,764. Runners for sliding doors windows &c. ELTREVA A.G. 30 Oct., 1968 [4 Nov., 1967], No. 51551/68. Heading E1J. A roller runner for a sliding door or window comprises a row of rollers 2 for moving over a glide track 3a, a row of lead-bearing rolls 4a for contacting a surface 1 which supports the door or window, the rolls 4a being supported by link rods 4 on the rollers 2 so that vertical movement of any of the rollers 2 relative to the supporting surface 1 is compensated by a relative adjusting horizontal movement of the load-bearing rolls 4a. The load-bearing members may be a housing element housing a roller 2 and having an upwardly tapering roof in sliding contact with a load bearing member in the form of an inverted triangle of similar base angles as the roof and capable of a horizontal sliding movement relatively to the load bearing surface. Alternatively the load bearing members may be rolls in contact with the rooves of the houses and the supporting surface.
Patent GB-1316680-A (GB)
Title: Deflection control-circuit for a display arrangement
IPC: H03K4/72
Filed: 1970-10-30
Abstract: 1316680 Sawtooth wave generators; cathoderay tube circuits PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 30 Oct 1970 [4 Nov 1969] 51713/70 Headings H3T and H4T A television deflection current control circuit comprises a multiplier to which is fed a parabolic voltage and the sum of a sawtooth and a direct voltage whereby the output of the multiplier output comprises a sawtooth component, a cubic component for S correction and, if desired, a parabolic component to correct for deflection circuit resistance. Fig. 1 shows a frame time-base driver circuit receiving a parabolic saw-tooth 3 and a D.C. displaced sawtooth 4. These inputs may be derived from a Miller integrator transition having its feedback capacitance formed by two series capacitors having their junction connected through a resistor to earth so that a linear sawtooth is produced at the junction and the parabolic sawtooth at the output electrode. The linear sawtooth is in effect subtracted from the parabolic sawtooth so that the input to the differential amplifier 10, 11 is the parabolic component together with a D.C. The output impedance of the circuit feeding terminal 2 is effectively a shortcircuit so that wave 4 only is applied to the base of the tail transistor 12. The output from the collector of transistor 10 is thus a linear sawtooth with a superposed cubic component, a parabolic component of one or other sense also being present if the potentiometer 5 is not adjusted to balance it out. The D.C. component is removed by applying the D.C. shifted sawtooth wave 4 and the wave from the potentiometer 5 to a differential amplifier 16, 17, having a temperature stabilized tail current, and combining the output of transistor 16 with that from 10. A resistor 6<SP>1</SP> adjusts the cubic S correcting component and resistor 13 the parabolic component. If the output is alternatively taken from transistors 11 and 17 reverse S correction is obtained. The long-tail pair multipliers may be replaced by a parallel transistor circuit (Fig. 3, not shown). Stabilization of picture height with different beam voltages may be effected by applying to lead 27 at the base of 10 a D.C. voltage derived from the flyback voltage or beam current (Figs. 2a and 2b, not shown). A stabilized amplifier may be connected between output transistor 25 and the deflection circuit output valve 36, Fig. 4. This measures, across resistor 37, the output current and allows the peaks to charge a capacitor 43 which thus provides a control voltage to the valve to maintain the mean current at the desired minimum value. Negative feedback from potentiometer 47 is used to control the deflection amplitude.
Patent GB-1365567-A (GB)
Title: Post curable cured polyurethane
IPC: C08G18/40
Filed: 1972-11-14
Abstract: 1365567 Polyurethanes GOODYEAR TIRE & RUBBER CO 14 Nov 1972 [13 Dec 1971] 52500/72 Heading C3R Post-curable cured polyurethanes are prepared by reacting an organic diisocyanate with a mixture which comprises 0À3 to 4 moles of at least one hydroxyl terminated aliphatic diol selected from diethylene glycol, dipropylene glycol and saturated aliphatic C 2-10  hydrocarbon monomer diols, at least one OH-containing C 2-10  primary or secondary amine, and one mole of a polymeric polyol having a molecular weight of 500-3000 selected from (A) polyester polyols selected from (1) the reaction product of a OH- terminated saturated aliphatic C 2-6  hydrocarbon diol and a saturated aliphatic C 4-10  dicarboxylic acid with an acid number less than 10 and from (2) polycaprolactones derived from the reaction of diethylene glycol, 1,4-butane diol or 1,6- hexane diol with caprolactones having 6-8 carbon atoms and (B) polyether polyols prepared by polymerizing C 2-4  alkylene oxides and OH-terminated saturated C 2-4  hydrocarbon diols wherein the mole ratio of said OH-containing amine to said diols is 0À02 : 1 to 0À5 : 1 and wherein the isocyanato groups of the diisocyanate are equal to 94-99% of the total reactive hydrogens supplied by the diol, the polymeric polyol and the hydroxyl amine and curing the mixture. The post-curable cured polyurethanes are characterized by having at 25 C. a Shore A hardness of 65-95, an ultimate tensile strength of 2000-8000 p.s.i.g., an ultimate elongation of 200-900% and a viscosity of 10- 10,000 c.p.s. at a 20% wt. concentration in methyl ethyl ketone. Preferred polyester polyols are the reaction products of ethylene glycol, 1,3-propane diol, 1,4-butane diol, 1,5-pentane diol or 1,6-hexane diol with adipic acid, succinic acid or azelaic acid. Preferred polyether glycols are polypropylene glycol and polytetramethylene ether glycol. Preferred diisocyanates are toluene diisocyanate, diphenyl-methane-4,41-diisocyanate, isophorone diisocyanate, 4,41-dicyclohexylmethane diisooyanate and methylcyclohexyldiisocyanate. Preferred hydroxylcontaining amines are diglycol amine, monoethanolamine, 1,3-diamino-2-hydroxy-propane, 2 - amino - 1 - butanol, 2 - amino - 2 - methyl, 1,3-propane diol, 2-amino-2-ethyl-1,3-propane diol and diethanol amine. The post-curable cured polyurethane may be post-cured with an organic polyisocyanate having an NCO functionality of 2-3 using a volatile organic solvent. Optional ingredients which were added in some examples to the polyurethane forming reaction mixture are dibutyltin dilaurate as catalyst, hydroxy ethyl hydroquinone as hardening agent and 2,6-ditertiary isobutyl para-cresol as antioxidant. Uses.-Adhesives.
Patent GB-1403729-A (GB)
Title: Battery electrolyte composition
IPC: H01M12/08
Filed: 1972-11-14
Abstract: 1403729 Electrolyte for zinc halogen cell OMF CALIFORNIA Inc 14 Nov 1972 [18 Nov 1971] 52614/72 Heading H1B An electrolyte for an electric energy storage device comprises an aqeuous solution containing a metal halide and a dendrite-reducing amount of a polyether compound derived from the polymerization of at least one alkylene oxide. Preferred polyethers are polyalkylene glycols, polydioxolanes, lower alkoxylated unsaturated compounds, lower alkoxylated alkyl phenols, lower alkoxylated alkylene glycols, lower alkoxylated alkylmercaptans, and lower alkoxylated fatty esters; polyethylene glycol, polypropylene glycol, and 1 : 3-polydioxolene glycol are used in examples. Virtually all metals are suggested for the halide with the exception of the alkali and alkaline earth metals. Zinc or iron cobalt or nickel is preferred. Chlorine and bromine are suggested halogens. The described application is to zinc-chlorine cells involving the use of chlorine hydrate and a zinc chloride aqueous electrolyte. It may be necessary to add polyether to the electrolyte immediately prior to each recharging of the cell. A test cell used with one of the specific electrolytes has parallel copper (cathodic) and inert electrodes with a permeable separator between them. Separate electrolyte streams are circulated on the two sides of the separator. The copper plate acts as a receiver for zinc deposited during charging.
Patent GB-1509391-A (GB)
Title: Measurement of organic carbon
IPC: G01N31/00
Filed: 1975-12-23
Abstract: 1509391 Measuring carbon content electrically SYBRON CORP 23 Dec 1975 [6 Feb 1975] 52691/75 Headings G1B and G1N The amount of organic carbon in an aqueous media is detected by converting the carbon into carbon dioxide by irradiating the media with ultraviolet radiation and measuring the amount of carbon dioxide produced. A dissolved sample is introduced by means of syringe into inlet 35a of a first water loop 9 which includes an irradiation chamber 1 containing an ultraviolet lamp 3 and a pump 7 so that the sample is circulated into the chamber 1 and any carbon present is converted into CO 2  which is drawn through a closed air loop 31 into a measuring chamber 11 incorporating a resistivity measuring cell by means of an eductor 33. The output of the cell representative of the amount of C02 is then fed to a non-linear amplifier which converts the input voltage to the -1À414 power which is a measure of the organic carbon present in the sample, Fig. 2 (not shown). In operation, before a sample is added to the water loop a valve 25 in a second water loop 19 is opened so that water from chamber 1 passes through a mixed bed ion-exchanger 27 for purification, measuring chamber 11 to chamber 1. When the output of the resistance cell 15 indicates no further change valve 25 is changed over by means of a timer circuit, Fig. 3 (not shown), to isolate the liquid of chamber 1 from 11 and the sample is introduced. After a predetermined time the meter reading is taken and the cleaning operation repeated.
Patent GB-1307510-A (GB)
Title: Composite webs
IPC: D04H1/46
Filed: 1971-11-15
Abstract: 1307510 Laminated foam-fabric composites TENNECO CHEMICALS Inc 15 Nov 1971 52965/71 Addition to 1264034 Heading B5N The composite web of parent Specification comprising (i) a base web which is an interlocking fleece of randomly oriented and distributed fibres disposed in a foam material with void spaces therebetween, and, mechanically bonded thereto, (ii) a fleece whose fibres have fine interstices therebetween and lie predominantly in a plane parallel to the surface of the web, is modified in that the denier of the fibres in (ii) is greater than the denier of the fibres incorporated in (i) and is preferably less than 6. The composite web may be made by needling the two layers together and densifying by applying heat and pressure, and may be impregnated with a solution of a soft, resilient, elastomeric filler so as to substantially but not completely fill the said void spaces and interstices. The base web may be made by physically forcing the fleece into the foam material, e.g. by needling. Materials and treatments suitable for the preparation and treatment of the composite are described in detail in parent Specification.
Patent GB-1337416-A (GB)
Title: Photoelectrophoretic imaging system
IPC: G03G15/28
Filed: 1970-11-09
Abstract: 1337416 Electrostatic printing XEROX CORP 9 Nov 1970 [14 Nov 1969] 53136/70 Heading B6C [Also in Division G2] In an automated photoelectrophoretic imaging apparatus multicolour or monochromatic images formed on injecting electrode 13 are transferred to paper web 27 fed over roller 163 which has a conductive core and an insulating overcoat. A potential is applied to roller 163 to aid transfer. Carrier liquid in tank 169 is applied by pinch rollers 171 and 172 to the web prior to transfer. The surface of roller 172 is fibrous. The transferred image is carried by vacuum transport 174 and fixed to the web by heater 199. The image may be exposed to the original image to aid transfer. The transfer assembly is raised into contact with the image by elevator mechanism 21a.
Patent GB-531672-A (GB)
Abstract: 531,672. Pipe vices. NAAMLOOZE VENNOOTSCHAP GEBR. STORK & CO.'S FABRIEK VAN HIJSCHVERKTUIGEN. July 28, 1939, No. 22023. Convention date, Sept. 8, 1938. [Class 61 (ii)] A pipe vice of the kind comprising three co-axial annular members 1, 2, 3 separated from one another by conical faces and each of the central and inner members 2, 3 composed of at least two segments has the top parts of the members 2, 3 formed by flanged cylindrical collars 5, 6, the collar 6 supported by a spring 8 against a rotatable cap 4 having diametrically disposed pins 9, 10 passing through inclined slots in a collar on the part 1 and bearing on an annulus 7 engaging the collar 5 so that by turning the cap 4 in one or other direction the parts of the inner member 3 are gripped or released from the work. The body 1 is provided with trunnions 11, 12 or a foot 13.
Patent GB-1521690-A (GB)
Title: Production of isocyanates
IPC: C07C265/10
Filed: 1974-12-11
Abstract: 1521690 Polyurethanes IMPERIAL CHEMICAL INDUSTRIES Ltd 3 Dec 1975 [11 Dec 1974] 53551/74 Heading C3R [Also in Division C2] Polyurethanes are prepared by reacting a poly-functional hydroxylic compound or a hydroxyl-ended polymer with an isocyanate which has been prepared by heating, in the presence of sulphur dioxide, a furoxan having the Formula I wherein R and R<1>, which may be the same or different, are C1-18 aliphatic or aromatic hydrocarbon groups or together form a second ring fused to the furoxan ring.
Patent GB-1453297-A (GB)
Title: Thermally insulated container for storage or transport of lique fied gases
IPC: F17C3/04
Filed: 1973-11-20
Abstract: 1453297 Liquefied gas storage container SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ BV 27 Nov 1973 [20 Nov 1973] 53723/73 Heading F4P A liquefied gas storage container has a lining 2 of polyurethane foam on the inner surface 3 of its rigid outer shell 1. The lining is provided with a barrier 5 consisting of glass-fibre material 6,7 and a cured epoxy resin 8, the barrier being arranged within the lining of foam. In the embodiment shown the inner surface 4 of the lining is in contact with the cold contents of the container and the total thickness of the barrier is in the range 0À5 to 1 mm.
Patent GB-1202911-A (GB)
Title: Improvements in and relating to pneumotachographic apparatus
Inventor: GREER JAMES ROBERTSON BOUVARD
IPC: A61B5/087
Filed: 1966-12-02
Abstract: 1,202,911. Respiratory measurements. MERCURY ELECTRONICS (SCOTLAND) Ltd. 27 Feb., 1968 [2 Dec., 1966], No. 54194/66. Heading A5K. [Also in Division G1] A device for monitoring human respiration comprises two moulded plastics members 10, 11 adhesively secured together to define an air duct and supporting between them a multiperforate member 16, the members 10, 11 being provided with ports 19, 20 for connecting apparatus responsive to pressure differentials to opposite sides of the member 16. The members 10, 11 are each identically formed with an annular portion 13 having a semi-circular cross-section and a flat portion 14 which forms a restriction 21 between each port and the portion 17 or 18 of the air duct. The member 16 comprises a fine wire gauze, but a gauze woven from nylon monofilament may be used. The ports 19, 20 are connected to manometric means and the restrictions 21 tend to stabilize the pressure indication.