baber/WOPTO huggingface dataset:
Patent GB-1194549-A (GB)
Title: Improvements in or relating to Phase Alternation Line Colour Television Systems
Inventor: ROGERS BERNHARD JOHN
IPC: H04N9/455
Filed: 1967-12-01
Abstract: 1,194,549. Colour television. RANK ORGANISATION Ltd. 18 Nov., 1968 [1 Dec., 1967], No. 54765/67. Heading H4F. Relates to apparatus for producing unmodulated carriers for demodulation purposes in a PAL colour television receiver in which two subcarrier oscillators 19 and 20 are employed, one, 20, of which is synchronized by a swinging burst associated with the alternating colour difference signal V and the other, 19, of which is synchronized by the non-swinging burst associated with the U colour difference signal, and including a gate 25 which operates to pass a short burst from oscillator 19 to oscillator 20 immediately prior to the application of the swinging burst signal to oscillator 20 in such a way that the burst from oscillator 19 changes the phase of the output of oscillator 20 by 90 degrees and the swinging burst changes the output phase of 20 by a further 90 degrees, making a total of 180 degrees every other line in accordance with the PAL system. This arrangement is claimed to considerably reduce the complexity of the V sub-carrier oscillator. As shown, the colour difference signals U and V, free from phase error, are derived from the chrominance signal and the associated burst pulses are gated out at 17 and 18, respectively, to synchronize the sub-carrier oscillators. Since the U and V signals may be either positive or negative in sign, 180 degrees phase ambiguity is eliminated using frequency doublers 23 and 24.
Patent GB-1125610-A (GB)
Title: Improvements in or relating to dispersant compositions and toxicant concentrates containing the same
Inventor: LINDNER PAUL LINDENWAYS
IPC: A01N25/30
Filed: 1965-12-28
Abstract: 1,125,610. Biocide/Dispersant Concentrate. WITCO CHEMICAL CO. Inc. 28 Dec., 1965, No. 54926/65. Heading A5E. [Also in Division B1] An organic water-insoluble biocidal toxicant concentrate comprises an organic solvent solution of a biocidal toxicant and 3% to 30% by weight of a dispersant composition comprising (a) (i) a C 6  to C 12  aliphatic monohydric alcohol, or (ii) a polyalkylene oxide adduct of a compound having at least one C 5  to C 26  lipophilic group, and (b) an organic substituted ammonium salt or mixed alkali metal-organic substituted ammonium salt of a sulphopolycarboxylic acid ester or acid amide of a lipophilic compound having an aliphatic C 5  to C 26  hydrocarbon radical, the weight ratio of (b) to (a) being at least 3:1 (see Division B1). The toxicant concentrate forms the oil phase of a homogeneous emulsion; the water phase is a solution containing at least 20% of inorganic fertilizer material.
Patent GB-1337403-A (GB)
Title: Graft copolymers and polyurethane produced therefrom
IPC: C08G18/00
Filed: 1970-11-19
Abstract: 1337403 Graft copolymers of unsaturated polyols and acrylonitrile; polyurethanes SOC MARLES - KUHLMANN - WYANDOTTE 19 Nov 1970 [20 Nov 1969] 55021/70 Headings C3G and C3R A transparent, homogeneous, liquid graft copolymer composed of recurring units derived from acrylonitrile and an unsaturated polyol has a viscosity not greater than 25,000 cps at 25‹ C. and is substantially free from any solid polymeric material, said acrylonitrile units being present in an amount 1-30% based on the weight of said polyol units. Additionally present may be other ethylenically unsaturated monomers in an amount up to 50% by weight of the mixture of acrylonitrile and said monomer. The transparent copolymer is prepared by simultaneously adding, at a steady rate, to an unsaturated polyol 1-30% by weight, based on the weight of the polyol, of acrylonitrile and 1-10% by weight, based on the weight of acrylonitrile, of a free radical catalyst, said addition being effected at a temperature above which the free radical catalyst decomposes. Conventional free radical catalysts are used. The unsaturation may be introduced into the polymeric polyol, of which numerous types are specified, either by including a suitable ethylenically unsaturated compound in the polyolforming reaction mixture or by reacting a preformed hydroxylated polymer with said organic compound (e.g. an unsaturated epoxide). The graft copolymers may be reacted with organic polyisocyanates to produce polyurethanes in the presence or absence of a gas generating agent. In the examples unsaturated polyethers (see below) are reacted with acrylonitrile either (a) by adding acrylonitrile and a solution of azobis- (isobutyronitrile) in toluene to the polyether or (b) by adding acrylonitrile and either a suspension of azobis-(isobutyronitrile) in the polyether or a solution of di-tertiarybutyl peroxide in the polyether to further of the polyether. Unsaturated polyethers are prepared in examples by (1) reacting glycerol/propylene oxide condensation products with (a) maleic anhydride and further propylene oxide and (b) allyl glycidyl ether in the presence of BF 3 ; and (2) reacting a propylene glycol/propylene oxide condensation product with maleic anhydride and further propylene oxide. A polyurethane elastomer is produced by reacting the graft polymer produced by reacting acrylonitrile with the unsaturated polyether described at (2) above with tolylene diisocyanate, propylene glycol and the polyol obtained by condensing trimethylol-propane with propylene oxide.
Patent GB-1168009-A (GB)
Title: Method for Dihydroisophorone Purification
Inventor: DIANA WILLIAM DANIEL
IPC: C07C45/85
Filed: 1967-12-04
Abstract: 1,168,009. Dihydroisophorone. ESSO RESEARCH & ENG. CO. 4 Dec., 1967 [13 Jan., 1967], No. 55078/67. Heading C2C. Dihydroisophorone is purified by treating a mixture comprising at least dihydroisophorone and beta-isophorone to isomerize the betaisophorone substantially completely to alphaisophorone without causing pyrolysis of the remainder of the mixture and distilling the dihydroisophorone from the resultant mixture. The isomerization may be carried out by heating or catalytically. The mixture may be produced by distilling the mixture of dihydroisophorone, alpha- and beta-isophorone and cis- and trans-3,3,5-trimethylcyclohexanol which is obtained by hydrogenating alpha-isophorone.
Patent GB-1335086-A (GB)
Title: Macrocyclic polyethers
IPC: C07D323/00
Filed: 1971-11-26
Abstract: 1335086 Complexes of macrocyclic polyethers E I DU PONT DE NEMOURS & CO 26 Nov 1971 [27 Nov 1970] 55097/71 Heading C2C The invention comprises complexes of (A) an organic sulphur-bearing compound selected from thioureas, amides of aromatic thioacids and thiosemicarbazides capable of acting as a vulcanizing agent for sulphur curable elastomers and (B) a macrocyclic polyether compound consisting of a macrocyclic ring of carbon and oxygen atoms totalling 15 to 60 ring atoms, the oxygen atoms in the ring being separated by links of 2 or 3 carbon atoms, said macrocyclic ring being fused to 1 to 4 carbocyclic rings each independently selected from (a) phenylene, naphthylene, phenanthrylene and anthrylene; (b) hydrogenated derivatives of (a) and (c) substituted derivatives of (a) and (b) wherein the substituents are halo, nitro, amino, azo, alkyl, aryl, aralkyl, alkoxy, cyano, hydroxy, carboxy and sulpho. The complex may be made by cooling a common solution of compounds A and B until the complex precipitates or evaporating solvent from a solution containing compounds A and B in a suitable ratio or by blending the compounds A and B in the dry state at a slightly elevated temperature until the complex is formed. Examples of compounds within the sulphur bearing compound classes include thioureas, thiobenzamides and thiosemicarbazides. Compound (B), the macrocyclic polyether compound is prepared according to Specifications 1,149,229  and 1,108,921.
Patent GB-1384089-A (GB)
IPC: C08L33/00
Filed: 1972-12-01
Abstract: 1384089 Sulphonated polyether derivatives BAYER AG 1 Dec 1972 [2 Dec 1971] 55484/72 Heading C2C [Also in Division C3] Ethoxylated stearyl alcohol monoester of sodium sulphosuccinic acid of formula is prepared by reacting ethoxylated (5) stearyl alcohol with maleic anhydride, sodium hydroxide and sodium bisulphite (Example 3); Sodium sulphosuccinic acid ester of ethoxylated stearylamine of formula is prepared by reacting ethoxylated (4,4) stearylamine with maleic anhydride and sodium bisulphite (Example 5); Triethylamine salt of sulphopropionic acid ester of ethoxylated lauryl alcohol of formula is prepared by reacting ethoxylated (7) lauryl alcohol with #-sulphopropionic acid anhydride and triethylamine (Example 6). The products are useful as antistatic agents for acrylonitrile polymers.
Patent GB-1419270-A (GB)
Title: Process for preparing alkyl benzenes
IPC: C07C2/68
Filed: 1972-12-06
Abstract: 1419270 Alkylating benzene PETROCHIMINSTITUTUL CENTRAL DE CERCETARI CHIMICE PLOIESTI 6 Dec 1972 56251/72 Heading C5E A continuous process for the production of an alkylbenzene which comprises (1) reacting benzene with an olefin in an alkylating zone in the presence of fresh and recycle catalyst comprising an aluminium chloride-hydrocarbon complex, the ratio of alkyl : phenyl group in the fresh catalyst being 2 : 1 to 3 : 1 (2) withdrawing from the alkylation zone a reaction mixture in which the ratio of alkyl : phenyl groups is 0À2 : 1 to 0À6 : 1 (3) separating partially deactivated catalyst, (4) continuously reactivating the separator catalyst away from the alkylation zone by treatment with fresh or recirculated feed benzene and (5) recycling reactivated catalyst to the alkylation zone. The alkylation may be carried out at 65-100‹ C. and 1-3 atmospheres. Examples describe the preparation of ethylbenzene and propylbenzene.
Patent GB-1215316-A (GB)
Title: Apparatus for the control of the peripheral speed of a rotatably mounted member
Inventor: LONABERGER ROBERT F
IPC: B24B47/18
Filed: 1967-12-13
Abstract: 1,215,316. Grinding; speed controlling. AMERICAN CONTRACTORS Inc. 13 Dec., 1967, No. 56651/67. Headings B3D and B3T. Means whereby the peripheral speed of a rotatably mounted member of circular outline such as a grinding wheel 12 or a workpiece rotating in a lathe is maintained substantially constant during use to compensate for wear or reduction in diameter comprises driving means for rotating the member, radiant energy beam transmitting and receiving units 31, 32, Fig. 3, mounted on opposite sides of the member for projecting a beam transversely of the periphery of the member and which beam is normally blocked by a peripheral portion of the member and becomes unblocked as a consequence of a predetermined reduction of the diameter of the member, speed control means operated when the beam is unblocked and including a motor 18, speed reducing means driven by the motor, and a speed varying means driven by the speed reducing means to increase the speed of the driving means in response to successive reductions in the diameter of the member, a guard 38 surrounding a portion of the member which is formed on opposite sides with a pair of corresponding arcuate slots 34 and pivotal means driven by the speed reducing means for pivoting the units 31, 32 along a respective slot. The radiant energy transmitting and receiving units may be a light source and photo-cell or an ultrasonic beam transmitter and receiver, in which case the ultrasonic beam frequency is preferably 37,500 to 38,500 cycles per second. In the apparatus described the member is a grinding wheel 12 and the motor 18 is a stepping motor connected via a speed reducer 24 to a cam 44 operating limit switches 46, 48, and to a shaft 36 carrying arms 30 which support the units 31, 32. Pivoting of the shaft 36 causes the units to move along the slots 34. The motor 18 is also connected via a speed reducer 28 to a potentiometer 40 which controls the speed of an electric motor driving the wheel 12. Alternatively the potentiometer is replaced by a valve and the motor is hydraulic. In use a beam is established between the units 31, 32 and hence the motor 18 operates to pivot the units towards the wheel and to vary the potentiometer 40. When the beam becomes blocked the motor 18 stops and the wheel is rotated at a constant speed until it is worn to such an extent that the beam is re-established. The motor 18 is then re-operated and this sequence continues until the wheel is worn to a limit when switch 46 is operated by cam 44 to stop motor 18. A " stop " button is then depressed which reverses the motor 18 to return the units 31, 32 to their start position and stop the drive motor. Reverse movement of motor 18 is stopped by limit switch 48. After wheel replacement a " start " button is pressed to restart the drive motor and a time delay allows the wheel speed to reach a desired minimum before the motor 18 is allowed to restart.
Patent GB-1267717-A (GB)
Title: Process and device for the continuous quantitative determination of oils in a liquid or gaseous medium
IPC: G01N33/18
Filed: 1969-11-19
Abstract: 1,267,717. A device for determining oils in liquids. HOWALDTSWERKE-DEUTSCHE WERFT A.G. HAMBURG UND KIEL. Nov. 19, 1969 [Nov. 23, 1968], No. 56662/69. Heading G1A. A process or device for the continuous and quantitative determination of oils, in a liquid or gaseous medium wherein a continuous sample of the medium is dispersed into fine droplets after being mixed with an equal or constant ratio of a solvent (e.g. carbon tetrachloride), said solvent being neither miscible with nor soluble in the medium. Next the solvent and oil solution is separated from the medium and measured for oil content with the aid of infrared radiation, the quantity of oil present being recorded and/or used in controlling a de-oiling plant. In an embodiment, an outlet pipe 1 of a de-oiling plant having a turbulence producer 4 is connected via a valve 23 to a flowmeter 3 having a flow regulating device 5. A similar flowmeter 8 supplied with carbon tetrachloride is connected via a pipe producing turbulence with flowmeter 3 to an extractor 7. In the extractor 7 the two media are dispersed by ultrasonic vibrations into fine droplets ensuring a rapid and continuous extraction of the oil from the medium by the carbon tetrachloride. From the extractor 7 the mixture is directed to a continuously operable separation device 13 where the individual phases (carban tetrachloride containing the dissolved oil and the de-oiled water) are continuously separated. The water leaves via a pipe 14 and the carbon tetrachloride phase passes via pipe 15 into and through an infrared cuvette, which provides a measure of the concentration of oil and thus a measure of the oil present in the medium. The cuvette is connected to an electronic recording device 19 and a de-oiling plant can be controlled in response to the concentration of oil present.
Patent GB-1395139-A (GB)
Title: Sparking-plug cap for an internal combustion engine sparking plug
IPC: H01T13/06
Filed: 1973-12-07
Abstract: 1395139 Sparking-plug cap KABELUND METTALLWERKE GUTEHOFFNUNGSHUTTE AG 7 Dec 1973 [14 Dec 1972] 56787/73 Heading H2E A sparking plug cap secured to end 3 of an ignition lead incorporates a conductive member 4 to join electrically the lead and the plug 6, the cap comprising a body 1 of thermoset synthetic resin having a central polygonal bore, preferably triangular (2, Fig. 2, not shown). the cavity between the body and the lead being filled with an elastomer composition 7. The composition extends through bores 8 in the body 1 to anchor the filling. In an alternative embodiment a metal sleeve (9, Figs. 3 and 4, not shown) is provided around the body and extending from its lower end to provide close-range suppression. The sleeve is secured to the body by longitudinal depressions (10) which are occupied by the filling. An elastic sealing ring (11) is provided at the bottom of the cap.
Patent GB-1164219-A (GB)
Title: Process for the Manufacture of Tetrachloroethylene
IPC: C07C17/25
Filed: 1967-12-14
Abstract: 1,164,219. Tetrachloroethylene. KNAPSACK A.G. 14 Dec., 1967 [20 Dec., 1966], No. 56842/67. Heading C2C. Tetrachloroethylene is made by dehydrochlorination of pentachloroethane in the presence of an alkyl- and/or aryl phosphine, and/or a hydrochloride, dichloride or quaternary phosphonium chloride thereof as catalyst. The dehydrochlorination products are distilled off in a conventional manner. The dehydrochlorination is carried out at a pressure of 1 to 10 atmospheres and a temperature of 150‹ to 200‹ C. The catalyst is used in an amount 0.5 to 20 parts by weight per 100 parts by weight of pentachloroethane.
Patent GB-1368149-A (GB)
Title: Radiation sensitive ends down detecting apparatus and method
IPC: D01H13/14
Filed: 1971-12-07
Abstract: 1368149 Method and apparatus for detecting ends downs PARKS-CRAMER CO 7 Dec 1971 [14 Dec 1970] 56860/71 Headings DID and D1F An apparatus for monitoring ends on, e.g. a spining frame 10 comprises a head 30, 30' suspended on a travelling service unit 20, the head containing a source of radiation 40 and a sensing element 39, e.g. a lead sulphide resistor the sensing element being associated with a reflective radiation concentrating means, e.g. parabolic reflector 36. A similar reflector 38 may be associated with the radiation source. Filters 41 and 42 are associated with the source and sensing element to tune them to the same frequency range, preferably infra red.
Patent GB-1143020-A (GB)
Title: Improvements in and relating to gripper mechanism for roller type machines for coating sheet material
IPC: B05C1/08
Filed: 1967-12-14
Abstract: 1,143,020. Feeding sheets. MASCHINENFABRIK RICHARD BILLHOFER. 14 Dec., 1967 [16 Dec., 1966], No. 56902/67. Heading B6B. [Also in Division B2] A sheet 13 passes along a plate 14 to the nip of a coating roller 16 and a pressure roller 3, the leading edge of sheet 13 being seized between pick-up fingers 10 and a bar 6 mounted within a recess formed in roller 3. The fingers 10 are rigid with a shaft 1, the ends of which are journalled in respective plates 2, each of which is pivoted on a pin 4 carried by a plate 4<SP>1</SP> fixed to an end face of roller 3, the axis of pins 4 being coincident with the surface of roller 3. Fingers 10 are biased by a spring 30 against bar 6 which is carried by the arms 2. Shaft 1 is connected by a pitman 9 to an eccentric 8 on the shaft 7 carrying roller 3. An arm 5, rigid with shaft 1, carries a follower roller 12 cooperating with a cam 11 rigid with shaft 7. The arrangement is thereby such that the normally-open fingers 10 close at the pick-up point on said leading edge which extends into the recess in roller 3. During further progression, shaft 1 is raised by eccentric 8 and pitman 9 whereby, at the draw-off point when fingers 10 re-open, the leading edge lies at a tangent to the surface of roller 3 for seizure by travelling draw-off fingers 15. The latter are rigid with a shaft 18 journalled in blocks 19 carried by respective chains 20 mounted on sprockets 23. The fingers 15 are biased by a spring 29 against rings 25 on a shaft 24 rigid with the blocks 19. An arm 26, rigid with shaft 18, carries a follower roller 27 co-operating with a fixed cam 28 to open and close fingers 15 at the draw-off point.
Patent GB-1206412-A (GB)
Title: Improvements in or relating to a mounting bracket for a mirror
Inventor: GUTNER KENNETH HOWARD
IPC: A47G1/04
Filed: 1967-12-15
Abstract: 1,206,412. Pivotal bracket. K. H. GUTNER. 15 Dec., 1967, No. 57095/67. Heading E2F. A pivotal bracket, e.g. for securing a mirror to a dresser, comprises two elongated rib members 15 and 16 with flanges 13 and 14 fixed together for relative pivotal movement about an axis 9, which may be a nut and bolt which can be tightened so that the two members may be fixed relative to each other. The central portions 32 and 33 of the ribs between the relatively low profile remote ends and the relatively high profile connected ends have an aspect ratio of from 4 to 7.
Patent GB-1451503-A (GB)
Title: Power plants
IPC: B01D46/24
Filed: 1973-12-10
Abstract: 1451503 Centrifugal separator; air cleaner MASSEY FERGUSON INDUSTRIES Ltd 10 Dec 1973 [22 Dec 1972] 57106/73 Headings BIT and B2P [Also in Divisions B7 and F1] A two-stage air cleaner comprises a first chamber 60 associated with a fan 114 for passing air to be cleaned through the chamber and for centrifuging the air so as to separate foreign. matter, the chamber having an opening 85 for the discharge of separated foreign matter and a second chamber 66 mounted within the first chamber and having a screen wall 68 and an opening for the discharge of cleaned air, wiper means 112 being rotatably mounted within the second chamber to periodically block the passage of air through a portion of the screen wall to allow foreign matter retained by the screen wall to be carried to the discharge opening 85 by a portion of the air moving along the screen wall. The air cleaner may be mounted in a combine harvester for removing chaff, straw and dirt from the air and forcing it as cleaned cooling air through the radiator for the associated i.c. engine and into the engine compartment. The fan is driven by V belts 128, 130 by a pulley (44), Fig. 1 (not shown) mounted at the end of a shaft (37) driven by the engine (36). The wiper means 112 consists of a strip of resilient material, e.g. rubber belting, attached to a vane or plate 104 clamped to the free end of one of a pair of arms 102 of a wiper 92, the other arm 102 carrying a vane or plate 106. The wiper is rotated by the major portion of the air which after passing through the screen wall 68 is still rotating when it enters the chamber 66. The discharge opening 85 communicates with a toroidal chamber 84 in which air carrying the separated foreign matter moves in a circular path and is discharged therewith through a tangential, funnel-shaped exhaust passage (86), Fig. 4 (not shown).
Patent GB-1216318-A (GB)
Title: Envelopes with detachable extension strips
Inventor: VOYSEY RONALD GEORGE
IPC: B65D27/08
Filed: 1967-12-18
Abstract: 1,216,318. Envelopes. CHAPMAN & CO. (BALHAM) Ltd. 10 Dec., 1968 [18 Dec., 1967], No. 57317/67. Heading B6A. An envelope formed from the blank shown includes an extension strip 7 joined to one edge of the envelope by a line of perforations 6, and two compartments formed by panels 10 interleaved between front and back panels 1, 2 and stuck down by adhesive 11a, 11b. The blank may be bound in a magazine or the like by a second extension strip 8, the strip 7 being provided as a tear-off label. The blank, when folded along lines 13 and 12, the flaps 10 being secured to panels 2 by the adhesive 11a, 11b and the panels 2 being secured to the panels 1 by adhesive 5, forms a pair of envelopes each having a closure flap 3, a first compartment between the flap 10 and the panel 1, and a second compartment between the flap 10 and the panel 2 and delimited by the adhesive areas 11a, 11b. The blank may be bound in an assembly comprising two adjacent magazines which are subsequently severed, the blank being divided along the axis of symmetry so that one envelope is bound in each magazine. The adhesive used may be remoistening adhesive or self adhesive.