baber/WOPTO huggingface dataset:
Patent GB-1454185-A (GB)
Title: Urethane coating formed of epoxy resin and polyisocyanate
IPC: C08G18/78
Filed: 1974-09-23
Abstract: 1454185 Coatings LOCKHEED AIRCRAFT CORP 23 Sept 1974 [24 Sept 1973] 41360/74 Heading C3B A substrate, e.g. aluminium, is coated, to obtain a coating which is strippable by non- acid strippers and which is resistant to blistering. The coating composition is prepared by mixing together: (A) an epoxy resin (I) containing OH groups; (B) a hardener which is a mixture of an aromatic polyisocyanate (II) and a biuret containing polyisocyanate which contains up to 6 NCO groups and has the formula in which X is H or and R<SP>11</SP> is the radical residue after removal of two NCO groups from cyclohexane diisocyanate, hexamethylene diisocyanate, phenylene diisocyanate, diphenylmethane diisocyanate, dicyclohexyl diisocyanate and chloro-substituted phenylene diisocyanate; and (C) a coupling agent (III) for facilitating bonding to the substrate. I may be a diglycidyl ether of bisphenol A. II may be tolylene diisocyanate. The ratio of OH groups in I to NCO groups in the hardener may be 1 : 1À4-3À6. III may be gamma-glycidoxypropyltrimethoxysilane present at 0À2-5À0% by wt. of I. The composition may additionally comprise pigment, e.g. a mixture of chromates of differing leach rate (25-150% by wt. of I) and a suspending agent for the pigment, e.g. pyrogenic silica at 0À1-4% by wt. of the coating. A catalyst, e.g. zinc octoate, may be present at 0À1-10% by weight of I. Uses.-Aircraft and space ship exteriors.
Patent GB-1484125-A (GB)
Title: Apparatus for the administration of liquids
IPC: A61M5/168
Filed: 1973-09-04
Abstract: 1484125 Administering parenteral fluids E W CLARKE 17 Aug 1974 [4 Sept 1973] 41634/73 Heading A5R [Also in Division B8] Apparatus for the administration of a liquid by gravity comprises a readily collapsible container 7 of elongated tubular form, a duct through which liquid may leave container 7, a take-up device 21 which acts to restrict the volume of container 7 which communicates with the duct, and calibration marks 33 on the container. The container 7 is made from two sheets of plastics material welded together with a tube 6 sealed between the sheets to form the duct. The take-up device 21 comprises a pair of identical frames connected at a hinge end 34, the side of each frame opposite hinge 34 having a partcylindrical jaw 24, the bearing surfaces being held together by rubber bands 28 to compress the sides of the container together. Jaws 24 may be replaced by rollers. The take-up device may alternatively be an apparatus for rolling up the tube from its sealed end 19, or a piston movable within the container. The take-up device may be automatically adjustable. Additionally, displacing means may be provided for compressing the container. The apparatus preferably forms part of an administration set in which the tubing is of oval cross-section.
Patent GB-929192-A (GB)
Title: Improvements in or relating to valves for controlling the flow of steam, air, gases,or other fluids
Inventor: HOWARD HENRY
IPC: F16K3/18
Filed: 1960-12-05
Abstract: 929,192. Valves. CAMMELL LAIRD & CO. (SHIPBUILDERS & ENGINEERS) Ltd. Dec. 1, 1961 [Dec. 5, 1960], No. 41693/60. Class 135. A fluid-flow control valve comprises closure members 4 operated by a spindle 1, wherein initial movement of the spindle brings the closure members into alignment with flow ports 6a and continued movement causes a toggle device 2, 2a to abut a stop 8 and thereby force the closure members on to their seats, the toggle device being free to float with respect to the valve operating mechanism so that the latter does not interfere with the lateral movement. As shown in Fig. 1, the closure members 4 are connected by the toggle linkage 2, 2a which are connected to the end of the spindle via a pin 3b passing through a clearance hole 3c in the spindle, the closure members being additionally spring-loaded against their seats. In the modification shown in Fig. 4, the closure members are formed with spherical recesses engaged by the ends of toggle members 13, the other ends of the toggle members having spherical recesses 13b engaging a ball 14. The ball 14 also engages with a movable spindle 15 which, when the closure members are in the closed position shown, abuts a stop 8 and thereby tends to straighten the toggle joint and so forces the closure members on to their seats. The spindle may be operated by manual, piston, or electromagnetic means.
Patent GB-1430939-A (GB)
Title: Recording of information
IPC: H04N5/82
Filed: 1972-09-08
Abstract: 1430939 Recording video signals MARCONI CO Ltd 27 July 1973 41752/72 Heading G5R In apparatus for recording a video signal and two associated audio signals, the audio signals are stored during recording of each video signal field and then recorded during the following field interval. The video signal is sampled and converted to a digital signal which is applied directly from terminal 1 to a fine electron gun 2 where it modulates the gun beam to record each frame of the video signal in band A of thermoplastic tape 4. During each frame the audio signals, similarly converted, are separately applied to terminals 5 and 6 and stored in digital stores 7, 8. Clock signals synchronized to the correct portion of the field blocking period read the signals out of the stores at an increased speed and these are recorded by the gun 2 in bands B and C respectively of the tape. A course electron gun 10 records cue and control signals in bands D and E respectively of the tape.
Patent GB-1262707-A (GB)
Title: Production of the esters of polycyclic compounds
IPC: C07D209/86
Filed: 1969-08-21
Abstract: 1,262,707. Production of the esters of polycyclic compounds. UNION CARBIDE CORP. 21 Aug., 1969 [22 Aug., 1968], No. 41754/69. Heading C2C. A process for the production of esters of polycyclic compounds of formula wherein Y represents a member of the group consisting of (i) when said polycyclic compound is fluorene or indene, (ii) when the polycyclic compound is carbazole or indole and (iii) when the polycyclic compound is an indene, R<SP>111</SP> represents hydrogen, C 1-10  alkyl and aryl of up to 10 carbon atoms, R<SP>1111</SP> represents hydrogen, C 1-10  alkyl and aryl of up to 10 carbon atoms, and aryl of up to 10 carbon atoms, and when the polycyclic compound is an indene R<SP>1111</SP> can additionally be -CH 2 -CHR<SP>1</SP>COOR, R<SP>111</SP> and R<SP>1111</SP> when taken jointly represent -CH=CH-CH=CH-, R is an alkyl group, and R<SP>1</SP> is hydrogen or methyl, comprises reacting an acrylate ester of formula CH 2 = CR<SP>1</SP>COOR with a polycyclic compound of the formula wherein X is -NH- or -CH 2 -, R<SP>11</SP> and R<SP>111</SP> individually represent hydrogen, C 1-10  alkyl, and aryl of up to 10 carbon atoms and R<SP>11</SP> and R<SP>111</SP> when taken jointly represent in the presence of a boric catalyst. The examples describe the preparation of dimethyl, diethyl, and dibutyl esters of 9,9-bis (2-carboxyethyl) fluorene; diethyl ester of 1,1-bis(2-carboxyethyl) indene; diethyl ester of 1,3-bis (carboxyethyl) indene;, ethyl-(1-indole) propionate and ethyl 3-(9-carbazole)propionate. Several  other compounds are specified in Examples 16- 23.
Patent GB-987923-A (GB)
Title: Extractive distillation of acetals
IPC: C07D317/12
Filed: 1961-11-22
Abstract: Aliphatic and cyclic acetals are separated from alcohols and/or water by submitting the mixture of acetal, alcohol and/or water to fractional distillation in the presence of a polyamine, an amino-alcohol, a polyhydric alcohol or a partially etherified polyhydric alcohol, whereby the purified acetal is obtained as distillate. Examples are given relating to the purification of methylal from methanol and/or water, using ethylene glycol, diethylene glycol, triethylene glycol, 1 : 3-butylene glycol, methyl diglycol, ethanolamine, triethanolamine, and triethylene tetramine as extraction agents. Other examples relate to the separation of acetaldehyde-dimethyl acetal from methanol using ethanolamine, and the separation of acetaldehyde-diethyl acetal from propanol using diethylene glycol.  Formaldehyde-dibutyl acetal is separated from sec.-octanol by distilling the mixture under reduced pressure with triethylene glycol.  The separation of 1 : 3-dioxolane from ethanol and/or water is referred to. Dioxolanes with methyl-, ethyl-, and propyl-substituents are also referred to.  Methoxy-ethoxy-methane is mentioned.ALSO:Aliphatic and cyclic acetals are separated from alcohols and/or water by submitting the mixture of acetal, alcohol and/or water to fractional distillation in the presence of a polyamine, an amino-alcohol, a polyhydric alcohol or a partially etherified polyhydric alcohol, whereby the purified acetal is obtained as distillate.  Examples are given illustrating the purification of methylol from methyl alcohol and/or water, using ethylene glycol, diethylene glycol, triethylene glycol, 1:3-butylene glycol, methyl di-glycol, ethanolamine, triethanolamine and triethylene tetramine as extraction agents.  Other examples relate to the separation of acetaldehyde-dimethyl acetal from methanol using ethanolamine, and the separation of acetaldehyde-diethyl acetal from propanol using diethylene glycol.  Formaldehyde-dibutyl acetal is separated from sec. octanol by distilling the mixture under reduced pressure with triethylene glycol.  The separation of 1:3-dioxolane from ethanol and/or water is referred to.  Dioxolanes with methyl-, ethyl- and propyl-substituents are also referred to. Methoxy-ethoxy-methane is mentioned.
Patent GB-1411111-A (GB)
Title: Electronic photo-flash
IPC: G03B15/04
Filed: 1972-09-08
Abstract: 1411111 Electronic photo-flash PONDER AND BEST Inc 8 Sept 1972 [15 Sept 1971] 41873/72 Heading G2A [Also in Division H3]  An electronic photo-flash system has an electronic switch in series with a flash tube, and a trigger circuit responsive to ionization of the flash tube so that the switch becomes conductive to allow flash energy to flow through the tube. As seen in Fig. 2, a power supply charges a storage capacitor 202, the voltage of which is applied to the electrodes of the flash tube 203 via a resistor 208 in parallel with a normally blocked thyristor 205. This voltage is also applied to a thyristor 206 which is also normally blocked. As soon as the synchronization contact 210 is closed, the flash tube ionizes. A positive voltage variation is produced at the anodes of thyristors 205 and 206, limited by resistor 212 and capacitor 213. The variation is also transmitted to the control electrode of thyristor 205 via resistor 214 and capacitor 215, so the thyristor becomes conductive, and thus the discharge current in the flash tube is established. As soon as thyristor 205 conducts, transistor 245 also becomes conductive, which permits integration of the light received by the photo-sensitive element 246. After a predetermined quantity of light has been received, a control signal is delivered to terminate the flash. The sensitivity of the lightsensing element 246 may be adjusted by an optical attenuator.
Patent GB-1435577-A (GB)
Title: Pesticide
IPC: A01N57/00
Filed: 1973-09-07
Abstract: 1435577 A thiol carbamate BASF AG 7 Sept 1973 [8 Sept 1972] 42114/73 Heading C2C [Also in Division A5] N - methyl - N - isobutynyl - S - benzyl - thiol carbamate is prepared by adding N-methyl-N- isobutylamine to a solution of benzylthiol chlorocarbonic ester in benzene and heating under reflux.
Patent GB-1526926-A (GB)
Title: Repair of glass laminates
IPC: C03C27/10
Filed: 1974-09-27
Abstract: 1526926 Repairing laminates MINNESOTA MINING & MFG CO 26 Sept 1975 [27 Sept 1974 18 April 1975] 42117/74 and 16166/75 Heading C1M Crack damage (A) in a glass surface layer 12 of laminate 10 (which also includes plastics layer 16 and glass layer 14) is repaired by reducing the pressure over the damaged area, for at least 10 minutes, to not more than 0À5 mm. Hg absolute to remove air from the crack, applying to the surface a liquid resin composition B of sufficiently low viscosity to penetrate the crack and curable to form a transparent polymer whose refractive index is sufficiently close to that of the glass to give a visibly non-obvious repair, removing the reduced pressure and allowing the resin to penetrate the crack and cure, and removing excess polymer from the surface. The pressure may be reduced by use of vacuum cup D, the liquid resin composition B being introduced into polyethylene reservoir C by injection through injection point F. The liquid resin composition preferably comprises one or more epoxides and an amine curing agent.
Patent GB-878991-A (GB)
Title: Improvements in and relating to filter presses
Inventor: SCHOLER FERNAND
IPC: B01D25/176
Filed: 1958-12-31
Abstract: 878,991. Filters. CIBA Ltd. Dec. 31, 1958, No. 42268/58. Class 46. A filter cloth 14, apertured in the region of a marginal supply bore 16 of a plate 10, is sealed by pressure rings 28 screwed on to the ends of a sleeve 26 fitting in the bore., One ring may be replaced by a flange on the sleeve.
Patent GB-1124280-A (GB)
Title: Lubricant base
Inventor: DYER ROBERT HARRIS
IPC: C07C5/03
Filed: 1965-10-05
Abstract: A lubricant base comprises a polyisobutene having a viscosity in the range 30-400 S.S.U. at 210 DEG  F. and a molecular weight of 125-700 which has been hydrogenated to a colourless, odourless, stable form. Polymerization is effected as described in Specification 886,134 and in an example hydrogenation is effected over platinum chloride on kieselguhr.ALSO:A lubricant or hydraulic fluid base comprises a polyisobutene having a viscosity in the range 30-400 ssu at 210 DEG F. and a molecular weight in the range 125-700 which has been hydrogenated to a colourless, odourless, stable form. Polymerization is effected with a FriedelCrafts catalyst in a liquefied C1-C5 refinery cut with recycle of the reaction mixture so that the isobutene is polymerized in a dilute phase. In an example, the product is hydrogenated over platinum chloride on kieselguhr. Lubricants comprise the hydrogenated polymer with a detergent additive, e.g. alkali, alkaline earth or heavy metal salts or soaps of fatty acids, sulphonic acids or sulphurized oils, and optionally organic halogen compounds, methacrylate polymers, methylnaphthalene, alkyl or aryl phosphates, or graphite.  Hydraulic fluids comprise water-in-oil emulsions of the hydrogenated polymer containing 5-75% by wt. of water based on emulsion. Suitable dispersing agents are sodium lauryl sulphate, carboxy polyoxyalkylene ethers of alkylphenols, polyoxyalkylene ethers of alkylphenols, fatty acid esters of sorbitan, lecithin, or heavy metal or ammonium soaps. Greases are formed by thickening the polymer with soaps or clays alone or with amines or polyamines.
Patent GB-1520794-A (GB)
Title: Test disc holder for sensitivity tests on bacteria
IPC: C12M1/34
Filed: 1975-10-16
Abstract: 1520794 Antibiotic sensitivity test device DR WILD & CO AG 16 Oct 1975 [22 Oct 1974] 42535/75 Heading G1B Test discs 8, Figs. 1 and 2, impregnated with antibacterial substances are mounted on the arms 2-7 of a raised holder 1 fabricated in transparent plastics material (polyvinyl chloride), or in wood or metal. The arms of the holder are strengthened by running ribs 12 and two recesses 10 and 11 (or a single, regular hexagonal recess, not shown) enable the device to be manipulated with a pair of tweezers. The central section 13 may have an additional arm extending directly downwards. The discs can be affixed to the carrying surfaces 9a with a quick-drying inert adhesive or welded on in the case of a plastics carrier by means of a short heat pulse.
Patent GB-1107072-A (GB)
Title: Cosmetic depigmenting compositions
IPC: A61K8/368
Filed: 1965-03-26
Abstract: Topical compositions for reducing the pigmentation of the skin comprise a topically acceptable cosmetic carrier together with 0.1 to 20 percent by weight of catechol, which may optionally be substituted by one or more halogen atoms, or C1-C6 alkyl or alkoxy, or carboxy groups.  The preferred active ingredient is unsubstituted catechol, and the compositions may be ointments, with a hydrophobic, hydrophilic or emulsified cream base, or lotions in an aqueous, non-aqueous or oil-in-water base.  Other ingredients may be perfumes, antioxidants, pigments and exfoliating agents.
Patent GB-1071987-A (GB)
Title: Improvements in and relating to oil seals for the propeller shaft of marine vessels
IPC: B63H23/36
Filed: 1965-10-08
Abstract: 1,071,987. Mechanical seals. R. YATES. Oct. 8, 1965, No. 42727/65. Heading F2B. An oil-sealing arrangement for a propeller shaft 10 where it extends between the, propeller boss 11 and a wear-ring 24 on the outer end of a stern tube 12 comprises a ring 19 of neoprene or other plastic material which rotates with the shaft and incorporates an anti-friction ring insert 23, preferably of hard bronze, on its sealing face, a housing 21 which tightly encircles the ring and a chamber 20a positioned between the propeller boss and the ring to which oil under pressure is supplied to retain the ring in sealing contact with the wear-ring irrespective of shaft expansion. As shown, two neoprene rings 18, 19 are gripped on to the shaft and initially distorted into engagement with the boss and wear-ring by a housing 21 formed by two parts drawn together by bolts. The oil under pressure is delivered from a tank 34 via a pipe 31 and ducting to the space between the rings. When shaft expansion occurs, the rings are further distorted to retain the seal. At the inner end of the stern tube a single neoprene ring 41 having a hard bronze insert 40 is clamped by a housing 42 into sealing contact with a wear-ring 39, sealing contact being maintained by the pressure of oil in a chamber 43 behind the ring. The oil pressure may be regulated by an adjustable spring-loaded valve 47a in the oil return pipe 47. In Fig. 5 (not shown), two neoprene rings instead of one are employed at the inner end of the stern tube. Only one ring may be employed at the outer end, the housing being bolted to the propeller boss.
Patent GB-1385736-A (GB)
Title: Assemblable support structure for tables and the like
IPC: A47B1/08
Filed: 1972-09-14
Abstract: 1385736 Table underframes KARTELL SpA 14 Sept 1972 [15 Sept 1971] 42775/72 Heading A4H [Also in Division F2] A disassemblable support structure for a table top etc. comprises a rectangular frame and four corner legs, the structure being of tubular section and formed from four separate parts 1-4, Fig. 1 each part having a pair of horizontal perpendicular arms 5, 6 to provide the frame and a leg 7 and being formed from an external and an internal half-shell 11, 12, Figs. 8, 9 the adjacent arms 5, 6 of the parts 1-4 being connected by tenon joints 25. Half-shell 11 has parallel lower flanges 13, 14, an upper flange 18, and C-shaped part 19, Fig. 2 co-operating respectively with lower flanges 15, 15', parallel upper flanges 16, 17 of the halfshell 12, and tongue 20. The C-shaped part and tongue form a seat 10 for the table top. The seat between flanges 13, 14 has extensions 21 Fig. 6 (not shown) engaging recesses along flanges 15, 15', and all the flanges may be glued. The tenon joint may comprise a separate tenon 25 having top and bottom recesses (26), Fig. 7 (not shown) at one end that co-operate with selected projections 30 in the arm 6 of one of the parts, and lateral opening (27) at its other end containing a threaded insert 28 that receives a screw 29 in arm 5 of the other adjacent part. Alternatively, the tenon (25'), Fig. 10 (not shown) may be integral with the shells of the arms 6. The parts are of moulded plastics.
Patent GB-1532939-A (GB)
Title: Method and apparatus for chromium electroplating of bars
IPC: C25D5/22
Filed: 1977-10-14
Abstract: 1532939 Chromium plating of bars FIAT SpA 14 Oct 1977 [27 Oct 1976] 42803/77 Heading C7B Bars are Cr plated by passing a continuous row of electrically and mechanically connected bars along the longitudinal axis of a part cylindrical or C-shaped anode immersed in a Cr plating bath, wherein the bar surface is cleaned as it passes along and is rotated about the axis by means of a stationary brushing device e.g. acting through a longitudinal opening in the anode.
Patent GB-965539-A (GB)
Title: Improvements in and relating to a method of mounting tin openers on tins, and apparatus for carrying-out the method
IPC: B21D51/38
Filed: 1960-12-13
Abstract: 965,539. Securing openers on cans. A. TANG, and U. TANG. Dec. 13, 1960 [Dec. 22. 1959], No. 42902/60. Heading B3A. [Also in Division B8] A method of mounting opening-keys 23 upon cans 2 with opening tongues 2a which are wound around the key to secure it against a side wall of the can but permit it to be moved longitudinally into a can-opening position, comprises moving the cans with their tongues 2a projecting outwards from the side wall, into a mounting station 3d in line with the exit of a magazine containing a supply of keys 24, displacing the leading key therefrom in the direction of its centre line and sliding it over a tongue 2a which is then wound around the key. The cans 2 are fed stepwise along guides 3, 4, 5 by a plunger 7 actuated through linkage 9, 11 by a cam 12 on shaft 6. A blunt chisel 13 at station 3b engages the tongue 2a to bend the end outwardly. At station 3c this projecting end engages a member 18 which bends the tongue outwardly at right angles to the side surface; the member 18 is retracted by linkage 19 and cam 22. At the mounting station 3d a vertically movable displacer 25 engages by its projections 25a, 25b, the handle portions of the leading key and slides it over the tongue 2a and into a slot 26a in a turning head 26 mounted on a rotatable and axially movable shaft 26b. The latter is first rotated, by rack and pinion means 34, 35 driven through linkage 36, 38 by a cam 43, to wind the tongue about the key, and is then raised by a lever 40 actuated by cam 39 to position the key inside the edge of the can. In another embodiment, Fig. 3, a vertical magazine 50 for the keys is used. This is of star-shaped cross-section, Fig. 4, with a plurality of vertical chambers 51 each containing a stack of keys. The lowest key in a stack is removed by a magnetized displacer 52, actuated by linkage 53, 55, and slid over a projecting tongue 2a. Instead of the cam mechanism, hydraulic or electromagnetic actuating means may be used.
Patent GB-1377161-A (GB)
Title: Disproportionation catalyst and process
IPC: B01J23/36
Filed: 1972-09-08
Abstract: 1377161 Disproportionation catalyst BRITISH PETROLEUM CO Ltd 8 Sept 1972 [20 Sept 1971] 43690/71 Addition to 1093784 Heading B1E [Also in Division C5] A disproportionation catalyst comprises rhenium heptoxide and a support, the support comprising a mixture of alumina and up to 50% wt. of a tin oxide, e.g. stannic oxide. The alumina is suitably gamma-alumina derived from boehmite prepared by the hydrolysis of aluminium alkoxides resulting from oxidation of the products of a ziegler-type reaction of a low mat aluminium alkyl and an alpha, monoolefin. The catalyst may contain 1 to 20 pbw rhenium heptoxide per 100 parts of support. The catalyst is activated before use by calcining in air or oxygen, nitrogen, carbon dioxides helium.