baber/WOPTO huggingface dataset:
Patent GB-1319156-A (GB)
Title: Process for reducing the mercury losses in the chlorine-alkali electrolysis by the amalgam process
IPC: C02F1/52
Filed: 1970-10-29
Abstract: 1319156 Reducing Hg losses in chlorine - alkali electrolysis plant CHEMISCHE WERKE HLS AG 29 Oct 1970 [31 Oct 1969] 51412/70 Heading C7B Mercury losses in chlorine-alkali electrolysis by the amalgam process are reduced by converting Hg compounds dissolved in waste-water into a mercury compound whose solubility in water is < 1 g/l or into Hg itself, and separating mechanically, together with undissolved Hg compounds and Hg. The waste water may arise from waterwashing of Hg in shut-down cells; Hg may be precipitated as the sulphide by H 2 S (gas, diluted gas, or aqueous solution), thioacetamide, thiourea, or a soluble sulphide (alkali metal or ammonium) or as the selenide or telluride using an alkali metal selenide or telluride. Hg 2 <SP>++</SP> may be precipitated using a chloride, bromide, or iodide, e.g. HCl, HBr, or HI. Dissolved Hg may be reduced to metallic Hg using Zn, Al, or preferably Fe. An excess of precipitant up to 10<SP>4</SP> molar is used, e.g. 0À2-100 STP litres of H 2 S per M<SP>3</SP> of waste water, a delay of at least 5 seconds being allowed before mechanical separation commences. The recovery process may be batchwise or continuous; the separated sludge is worked up in known manner to give Hg.
Patent GB-1489713-A (GB)
Title: Dynamo-electric machine
IPC: H02K1/18
Filed: 1975-12-18
Abstract: 1489713 Securing stators SIEMENS AG 18 Dec 1975 [21 March 1975] 51971/75 Heading H2A A dynamo-electric machine has a laminated stator assembly formed as a unit 6 which includes and is held together by a pair of assembly rings 9, 10, the stator assembly 6 being axially movable within a housing 2 of the machine during assembly thereof, and the stator is positioned in a centred location relative to the machine axis, with rings 9, 10 located within and connected to annular walls 3, 4, respectively, of housing 2, by means of centring blocks 20 secured to rings 9, 10 and associated with locating blocks 18 which fit in recesses 15 in walls 3, 4 and are a loose fit in opposing recesses 16 in rings 9, 10, each block 18 in wall 3 being aligned in the axial direction of the machine with a respective block 18 in the wall 4. The wall 3 and ring 9 are formed from the same plate which is cut along a circle 13 whereat the recesses 15, 16 are formed. Wall 4 and ring 10 are produced in the same way. After blocks 18 are fixed in the recesses 15 in walls 3, 4, the stator assembly 6 is axially pushed into the housing so that blocks 18 are loosely received in recesses 16 in rings 9, 10. Stator assembly 6 is then centred and L-shaped centring blocks 20 are welded to rings 9, 10 in abutment with blocks 18 to define the centred position. The stator assembly 6 is then removed from housing 2 by first shifting it axially rightwards to remove blocks 20 from abutment with blocks 18, then assembly 6 is rotated so that the blocks 18 in wall 4 align with auxiliary recesses (17), Fig. 2 (not shown), located in wall 9 between, and of the same size as, the recesses 16 in wall 9, whereupon stator assembly 6 can be completely removed by a further rightward axial movement. The stator is subsequently wound and reintroduced into its centred position in housing 1, plates (23), Fig. 2, then being screwed to ring 10 and wall 4 to define the axial position of the stator assembly. Each block 18 in wall 3 may be interconnected to the axially aligned block 18 in wall 4.
Patent GB-1103798-A (GB)
Title: Divider for separating articles in a container
Inventor: SALOMONE SANDRO RICCARDO MICHE
IPC: B65D5/49
Filed: 1965-12-09
Abstract: 1,103,798. Package inserts. PROCTER & GAMBLE Ltd. 9 Dec., 1966 [9 Dec., 1965], No. 52359/65. Headings B8C and B8P. A packaging insert, particularly for use in shrink-wrapped packages is made from a onepiece blank, preferably of corrugated fibreboard comprising panels 1 which are folded together about a crease line 2 and panels 6, 7 which are supported by panels 3. A flap 16 frictionally holds the panels 1, 2 together, or tabs on the panels 3 may engage slots in the panels 6, 7.
Patent GB-1454950-A (GB)
Title: Electrophotographic apparatus with cleaning member
IPC: G03G21/10
Filed: 1974-12-04
Abstract: 1454950 Electrostatographic cleaning ITEK CORP 4 Dec 1974 [28 Dec 1973] 52376/74 Heading G2H A device for cleaning photo-conductive surfaces comprises a cleaning member having an elastomeric surface at least 0.25 mils thick and having a Shore A hardness of below 85 durometers. The cleaning member shown is in the form of two belts 14, 16 trained over rollers 22, which collect residual toner from a photo-conductive drum 10 and pass it to a heated accumulator 30 from which it is scraped by scraper 34. The cleaning member may take the form of a web, a roller or an endless belt and the accumulator may be respectively a sponge roller, a perforated metal roller with liquid adhesive applied thereto or a web of paper.
Patent GB-1275999-A (GB)
Title: Wet bulb thermometer
IPC: G01N25/62
Filed: 1969-10-27
Abstract: 1275999 Thermometers; hygrometric apparatus ICHIKIN KOGYOSHA K K 27 Oct 1969 [14 Nov 1968] 52609/69 Headings G1D and G1S A wet bulb thermometer for use in a psychrometer for measuring the wet bulb temperature of a gas in a pressure chamber comprises a temperature measuring element 9 surrounded by a sleeve 6 including a heat resistant capillary material 8 enclosed between inner and outer wire nets 7, the capillary material extending into a passage 10 through which water at a predetermined pressure and/or flow-rate is circulated to maintain the wet bulb thermometer in a predetermined wet condition. The thermometer is designed for use at elevated temperatures and to this end a heat shield 13 is provided and further if desired a water cooled coil may surround the mouthpiece 12 of the device. Also the element 9 and sleeve 6 may be disposed at an angle of more than 10 degrees to the horizontal with the mouthpiece 12 uppermost to disperse bubbles which are liable to form on the surface of sleeve. The capillary material may be made from glass fibre, sponge platinum, asbestos, pumice, or unglazed pottery, and where the material 8 can be formed into a self-supporting body the wire nets 7 may be dispensed with. A wire filter 15 surrounds the sleeve 6 to prevent foreign matter reaching its surface.
Patent GB-1372423-A (GB)
Title: Recording and or playback apparatus
IPC: G11B15/665
Filed: 1971-11-12
Abstract: 1372423 Feeding record tapes PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 12 Nov 1971 [17 Nov 1970] 52702/71 Heading G5R A support 9 carrying one or more tape guide pins 7, 8 is rotated by a shifting device 14 between a first operative position, Fig. 1, and a second operative position defined by a stop 12, Fig. 2, in which a tape 3 is looped along a helical path round a drum 6, the support 9 and shifting device 14 being held in the two operative positions by respective latching means 22, 23; the shifting device 14 includes two pulling members 16, 17, of which at least the one 16 used for pulling the support 9 into its second operative position includes a spring 19, and is driven by a reversible motor 20 controlled by a manual switch 31, 32 for selecting the direction of rotation and two further switches 33, 34 which switch off the motor after either operative position has been reached. In an alternative construction, Fig. 5 (not shown), the motor 20 drives the shifting device 14 through selflocking worm gearing (60) which also replaces the latching means 22, 23.
Patent GB-1204130-A (GB)
Title: Process for extraction of hops with a solvent
Inventor: RIGBY FRANCIS LLOYD
IPC: C12L9/00
Filed: 1967-11-22
Abstract: 1,204,130. Extracting from vegetable matter. JOHN I. HAAS Inc. 22 Nov., 1967 [25 Nov., 1966], No. 53081/67. Heading B1Q. [Also in Division C6] Vegetable matter is comminuted in extruder 10 passes to solvent extractor 32 and the solvent is pressed from the extracted vegetable matter in press 42. In a modification of the apparatus in Fig. 2 (not shown) the matter is treated with solvent before extrusion and then recycled for further solvent extraction as in the first embodiment.
Patent GB-1186879-A (GB)
Title: A Device for Regulating the Feed of Flock to Carding Engines
Inventor: JEANMAIRE WALTER
IPC: D01G23/06
Filed: 1967-11-22
Abstract: 1,186,879. Regulating flock feeding to carding engines. W. JEANMAIRE. 22 Nov., 1967 [1 Dec., 1966], No. 53086/67.. Heading. D1N. The feed of flock to carding engine is automatically regulated in dependence on the non-uniformity of the sliver produced by the engine, by introducing a predetermined length of the sliver into a can, weighing the can, and altering the feed of flock in accordance with the deviation of the weight of the sliver filled can from a set weight. The quantity of flock fed to the engine may be varied by varying the width of a hopper of rectangular crosssection (Fig. 2), by varying the density of the flock, or by varying the compacting of the flocks in a hopper (Fig. 4). The side 21 (Fig. 2) of the hopper 2 is pivoted and movably controlled by a rack 23 and meshing gear 24 which is driven by an electric motor. The motor is controlled by device 16a which is supplied with current pulses from line 15 which leads from weighing device 14 (Fig. 1) which serves a plurality of carding engines 1a-d. The hopper 33 of Fig. 4 has a diaphragm part 43 movable by means of tongue 45 and counter tongue, which are both connected in the circuit of a control device 35 of the motor 35 of the drawing-in cylinder 31, tongue 46 also being connected to device 16a connected to lead 15.
Patent GB-1345067-A (GB)
IPC: C07C6/04
Filed: 1971-11-16
Abstract: 1345067 Disproportionation catalysts GOODYEAR TIRE & RUBBER CO 16 Nov 1971 [17 Dec 1970] 53108/71 Heading B1E [Also in Division C5] Catalyst compositions comprise a salt of W, Mo, Cr, Ta, Nb or Re, an organometallic reducing compound of a Group IA, IIB, or IIIB metal and NR<SP>1</SP>R<SP>2</SP>R<SP>3</SP> wherein R' and R<SP>2</SP> are H, alkyl, aralkyl, aryl, alkaryl or alkenyl radicals and R<SP>3</SP> is H or alkyl. A hydrocarbon or halogenated hydrocarbon may also be present.
Patent GB-1096250-A (GB)
Title: Disproportionation of olefins
Inventor: TURNER LEONARD
IPC: B01J23/889
Filed: 1965-12-16
Abstract: Acyclic olefins containing, e.g. C3- 30, are disproportionated in the presence of Re2O7 supported on Fe3O4, CoO, NiO or WO3.  The catalyst may be heated in air followed by inert gas at 300-900 DEG  C. prior to use. Specified olefins are those in the range C3- 8. Examples describe the disproportionation of propylene to yield equimolar quantities of ethylene and n-butenes.ALSO:Disproportionation catalysts comprise Re2O7 supported on Fe3O4, CoO, NiO or WO3.  The catalysts may be activated by heating either in an inert gas such as N2, He or CO2 or an oxidising gas followed by an inert gas.  Examples describe the preparation of all possible combinations except Re2O7 on CoO.
Patent GB-537415-A (GB)
Abstract: 537,415. Allyl and methallyl ethers of hydroxydiphenylamines. BAIRD, W., SCHARFF, G. E., and IMPERIAL CHEMICAL INDUSTRIES, Ltd. Dec. 19, 1939, No. 32515. [Class 2 (iii)] [Also in Group V] The allyl and methallyl ethers of 4-hydroxydiphenylamine and 4-hydroxy-4<SP>1</SP>-methyl-diphenylamine are prepared by heating the above hydroxy compounds in the form of their sodium or potassium salts in solution in an inert solvent with allyl or methallyl chloride or bromide. The preferred solvents are methyl or ethyl alcohol or water. The compounds may be purified by re-crystallization from an inert solvent at a temperature not above 100‹ C. The products are valuable as antiage compounds for rubber. In examples (1) To an alcohol solution of 4-hydroxydiphenylamine and sodium hydroxide there is added an alcohol solution of allyl chloride and the reaction mixture is boiled for 16 hours to give 4- allyloxydiphenylamine. (2) The effect of the product of example (1) in a rubber mix is illustrated. (3) Methallyl chloride is added to an aqueous-alcohol solution of sodium hydroxide and 4-hydroxydiphenylamine under similar reaction conditions to example (1) to give the corresponding methallyl ether. (4) Allyl bromide is added to an aqueous-alcohol solution of sodium hydroxide and 4-hydroxy-4<SP>1</SP>-methyldiphenylamine under the same conditions as before to give the corresponding allyl ether. (5) 4-hydroxydiphenylamine is treated with allyl chloride as above. (6) 4-hydroxy-4<SP>1</SP>- methyl-diphenylamine is treated with methallyl chloride, to give in examples 5 and 6 the corresponding ethers. Specification 518,158 is referred to.
Patent GB-1140096-A (GB)
Title: Improved paper and viscose pulp and products therefrom
IPC: D21C9/00
Filed: 1966-12-01
Abstract: 1,140,096. Laminated surgical articles. MO OCH DOMSJO A.B. 1 Dec., 1966 [1 Dec., 1965], No. 53885/66. Heading B5N. [Also in Divisions A3, A5, C3 and D2] Cellulose pulp which has been cross-linked with a polyfunctional cross-linking agent (as defined in the Specification) in the presence of an aqueous solution of up to 2À1% of an alkaline catalyst such that the factor "R18" (as defined in the Specification) is increased by 1-16%, may be used in the production of laminated products. The factor R18 is a measurement of the resistance to 18% aq. NaOH at 20‹ C. In examples: (16) a baby's napkin comprises a dried layer of a defibred pulp prepared as above surrounded by a thin coating of cellulose wadding, and above this a thin layer of non- woven fibrillated rayon fibre; (17) a compress for bandaging comprises a dried defibred pulp layer prepared as above compressed at 2 kg./ cm.<SP>2</SP> and enclosed in a thin layer of non-woven fibrillated rayon fibre; (18) a dental pad for absorbing saliva is of similar construction to the compress; (19) a sanitary towel comprises two layers of dried pulp prepared as above enclosed in a thin layer of tissue paper, the outer surface of one pulp layer being provided with a thin plastic sheet located outside the tissue paper. The two pulp layers are held together by a casing of two-ply tissue paper, the whole being enclosed in a net-covered casing of cotton wool.
Patent GB-1080680-A (GB)
Title: Process for the preparation of iminopyrrolidine derivatives
Inventor: LEY KURT
IPC: C07D413/04
Filed: 1965-12-20
Abstract: The invention relates to dialkyl amino-iminopyrrolidine derivatives of the general formula <FORM:1080680/C2/1> in which R1 is an alkyl, aryl, substituted aryl, cycloalkyl, aroyl or arylsulphonyl group, R2 is an alkyl, cycloalkyl or a substituted aryl group, R3 and R4, which may be the same or different, are alkyl groups or together with the nitrogen atom may be linked to form a ring which may contain additional hereto atoms, R5 and R6, which may be the same or different, are alkyl groups, or may be linked together to form a hydrocarbon ring, and X is oxygen or sulphur.  Many compounds are claimed per se. The compounds may be prepared by reacting enanines whose beta carbon atom carries alkyl radicals with isocyanates or isothiocyanates and isonitriles in an organic solvent at a temperature from 40 DEG  to 150 DEG  C.
Patent GB-1128231-A (GB)
Title: Improvements relating to monitoring devices for textile yarns or threads
IPC: D02H13/00
Filed: 1965-12-22
Abstract: 1,128,231. Warp stop motions. GLANZSTOFF A.G. 22 Dec., 1965 [24 Dec., 1964], No. 54399/65. Heading DIM. A thread-monitoring device comprises a series of steel strips hung from the threads, and resting against one of a pair of contact bars connected in a circuit with an indicator. In one embodiment the strips rest against the bar comprising spaced conductors 12, 14 of which one (12) is connected in parallel with a conductor 11 of the other bar. If the thread breaks or slackens unduly the strip falls onto contact 11 and completes the indicator circuit through support 24. If the thread is tensioned excessively the strip is raised so that it engages conductor 12 and the stop 25. In an alternative embodiment the strisps are supported on the bar 11, 13 which engages the slots 28. The tension at which the device responds may be altered by adjusting the height of one or both bars. or adjusting the spacing of eyes 7, 23.
Patent GB-1123983-A (GB)
Title: Method of and means for introducing waterproofing material into brickwork or other structural masonry
Inventor: GOSNELL CHARLES JOHN ALFRED
IPC: E04B1/62
Filed: 1965-12-22
Abstract: 1,123,983. Damp-proofing brickwork. PETER COX PRESERVATION CO. Ltd. 22 Dec., 1965, No. 54416/65. Addition to 1,038,437. Heading E1S. The tube for waterproofing brickwork of the parent specification is modified by the provision of sealing rings which are compressed into sealing engagement by the operation of pushing the tube into the hole in the brickwork, the sealing rings being of larger diameter than the outer porous tubing which spreads the waterproofing liquid.
Patent GB-1118605-A (GB)
Title: Improvements in television and television cameras
IPC: H04N9/04
Filed: 1965-12-22
Abstract: 1,118,605. Cathode-ray tube circuits. COMPAGNIE FRANCAISE THOMSON-HOUSTON-HOTCHKISS BRANDT. 22 Dec., 1965 [8 Jan., 1965], No. 54425/65. Heading H4T. Residual magnetism in the screens associated with a colour television pick-up tube is eliminated by producing in the screens a periodically varying magnetic field the amplitude of which is progressively decreased to zero whilst simultaneously or successively the magnetic focusing field is progressively increased from zero to its nominal value. The periodically varying magnetic field is produced by supplying the focusing coil FC (Fig. 2a) from an A.C. generator Ga controlled by means Ca to progressively reduce the amplitude of its output to zero. Simultaneously or successively therewith, determined by a pulse generator P, further control means Cc operates a D.C. current regulator R 1 , comprising e.g. the anode impedance of a pentode or the collector impedance of a transistor, to progressively increase the current in coil Ec due to a D.C. source S from zero to its nominal focusing value. The focusing coils of a plurality of pick-up tubes forming a colour television camera may, together with appropriate balancing resistors, be grouped in series (Fig. 2b, not shown), or in parallel (Fig. 2c, not shown) and connected across terminals (a, c). The members P, Ca, Cc may be housed in a casing separate from the actual camera.
Patent GB-1190520-A (GB)
Title: Luminescent Materials
IPC: C09K11/02
Filed: 1968-11-19
Abstract: 1,190,520. Luminescent materials. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 19 Nov., 1968 [22 Nov., 1967], No. 54876/68. Heading C4S. An alkaline earth aluminate phosphor activated by divalent Eu is defined by the formula Ba x Sr y Ca z Eu p -Al 12 O 19 , wherein x+y+z+p=1. and 0À1 # p # 0À001, preferably 0À05 # p # 0À01 and x # 0.7. A specific phosphor disclosed is Ba (1-p )Eu p Al 12 O 19 . In preparation, the mix is heated at 1100 to 1250 C. for 2 hours, cooled, ground, reheated at 1300 to 1500 C. for 2 hrs. in a N 2 -H 2  atmosphere. The phosphor, with emissions of from 380 to 440 nm. wavelength, may be used in HP and LPMV lamps for photo-chemical document copying processes, a reflecting layer of titanium dioxide in the anatese rather than rutile modification being included between the phosphor and its support. Intensities at high temperatures (e.g. 250 C.) are considered.
Patent GB-1219075-A (GB)
Title: Improvements in or relating to control systems
Inventor: LAMB HENRY
IPC: H04M1/278
Filed: 1966-12-08
Abstract: 1,219,075. Impulse transmitters. H. LAMB. 7 March, 1968 [8 Dec., 1966], No. 54892/66. Heading H4K. [Also in Division G3] An automatic dialling apparatus for attachment to a telephone dial operates upon presentation of a token having rows of encoded information. As shown, a punched card is pressed into a slot formed between plates 12, 14 and a base 10 by spacing members 16, 18; a stop 19 preventing the card slipping out. A D.C. motor, not shown, when energized drives a scanner unit 20, via a drive belt 22, to the left and rotates a wheel 34 in an anticlockwise direction. The wheel 34 causes an arm 54 to be moved to operate a dial, not shown, in which a peg 56 is fixed. The scanner unit 20 moves across the card until a hole is sensed by a microswitch 43 which causes the drive motor to reverse and return the scanner unit to the rest position. At the rest position a deflector 42 mounted on the scanner unit, engages a pawl 40 which steps the card and de-energizes the motor by tripping a microswitch 50. A microswitch 46 is operated by the return of the arm 54 under a spring bias of the dial to re-energize the motor and cause the movement of the scanner unit to be repeated. The sequence of movements is repeated until a hole is sensed by a microswitch 44 which causes the motor to be stopped. It is stated that the scanning unit can employ a photo-cell co-operating through the holes with a pre-focus lamp and the card can comprise a rigid dark-coloured card bearing white spots, the reflected light from which is sensed by a photo-cell.
Patent GB-1489436-A (GB)
Title: Magnetic recording medium containing lubricants
IPC: C09D5/23
Filed: 1974-12-20
Abstract: 1489436 Magnetic recording medium BASF AG 20 Dec 1974 [28 Dec 1973] 55096/74 Headings C3R and C3P A magnetic recording medium comprises a non-magnetic base material and a magnetic coating applied thereon in the form of a dispersion of a finely-divided magnetic pigment in a polymeric binder containing as a lubricant a block copolymer containing siloxane units and alkyleneoxy units of 2-4 carbon atoms, the alkyleneoxy units being bonded to the siloxane units through a Si-O-C or Si-C linkage. The preferred block copolymers contain a polysiloxane block of 4-60 siloxane units and alkyleneoxy units in an amount of from 1-10 times the number of siloxane units, the alkyleneoxy units being in the terminal positions of the molecule and/or pendant groups on the siloxane block. Suitable magnetic pigments include acicular gamma-iron (III) oxide of particle size from 0À2-2 Á, cubic gamma - iron (III) oxide, cobalt - modified gamma - iron (III) oxide, alloys of iron, cobalt and/or nickel and ferromagnetic chromium dioxide. Suitable binders are polyurethane elastomers and/or polyvinyl formals; copolyamides; mixtures of polyisocyanates and polyhydroxy compounds and vinyl chloride polymers containing more than 60% vinyl chloride units; vinyl chloride copolymers containing hydroxyl groups; mixtures of polyurethane elastomers with polyvinylformals, phenoxy resins or PVC copolymers. Conventional fillers and/or pigments may be added, e.g. carbon black, graphite, quartz powder and/or non- magnetizable silicate based powders. Suitable non-magnetic base materials are flexible plastics, films or tapes, e.g. of polyvinyl chloride or polyesters. The recording medium may be prepared by conventional methods by dispersing the magnetic pigment, binder and lubricant and any other additives in an organic solvent and applying the dispersion to the non-magnetic base. In the examples magnetic coatings prepared from either acicular gamma-iron (III) oxide or acicular chromium dioxide, tetrahydrofuran, dioxane, either a polyvinylformal binder (83% wt. vinylformal, 11% wt. vinyl acetate, 6% wt. vinyl alcohol units) or a mixture of the polyvinyl formal and a polyester polyurethane produced from adipic acid, 1,4- butane diol and 4,4<SP>1</SP>-diisocyanato-diphenylmethane, as binder, phthalic acid diisododecyl ester, either sodium oleate or zinc oleate; and a lubricant of the formula are applied to polyethylene terephthalate films which are then passed through a magnetic orienting film and then dried.