baber/WOPTO huggingface dataset:
Patent GB-1330875-A (GB)
Title: Spiropyran photochromic compounds
IPC: C07C45/45
Filed: 1970-12-03
Abstract: 1330875 Spiropyran compounds FUJI PHOTO FILM CO Ltd 3 Dec 1970 [5 Dec 1969] 57585/70 Heading C2C [Also in Divisions C3 and C4] Novel compounds of general Formula Ia or Ib: wherein R 1  represents C 1-4  alkyl or phenyl, R 2  represents one or more optionally present identical or different substituents selected from C 1-4  alkyl, halogen, carbalkoxy of C 1-4  alkyl, or alkoxyl, and R 3  represents one or more optionally present identical or different substituents selected from halogen, NO 2 , C 1-4  alkyl, alkoxyl or formyl, are prepared by reacting a compound of Formula IIa or IIb: with a compound of General Formula III: in the presence of an alcohol. Compounds of general Formula IIa or IIb may be prepared by the following steps: (a) cyclopentene or cyclohexene is reacted with acetyl chloride in the presence of AlCl 3  in cyclohexane to form acetylcyclopentane or acetylcyclohexane; (b) the reaction product from (a) is reacted with a phenyl hydrazine followed by reflux heating in glacial acetic acid followed by neutralization and ether extraction, to form a 1-cycloalkane-3-(2- methylindolenine)-spiropyran; (c) the product from (b) is reacted with p-toluene sulphonate at elevated temperature followed by neutralization and ether extraction, to form compound IIa or IIb. The novel compounds Ia, Ib exhibit photochromic properties (see Divisions C3 and C4).
Patent GB-1292528-A (GB)
Title: Improvements in or relating to rotary printing machines
Inventor: TOPFER KLAUS
IPC: B65H19/16
Filed: 1970-12-04
Abstract: 1292528 Feeding webs POLYGRAPH LEIPZIG KOMBINAT FUR POLYGRAPH. ISCHE MASCHINEN UND AUSRUSTUNGEN VEB 4 Dec 1970 57621/70 Heading B8R A working web 11 is supplied to a rotary printing press (not shown) from a supply roll 2 mounted on a reel stand 1 which also carries standby rolls 3, 4, the former being shown in the replacement position. Pulse generators 17, 18 or 19, associated with cones clamping respective rolls on to the stand, produce pulses representative of the rotational speed of the working roll, i.e. roll 2 as shown, whilst pulse generator 20 and pulse generator 21 produce pulses representative respectively of the linear speed of the web 11 and of the peripheral speed of the replacement roll, i.e. roll 3 as shown, as it is accelerated up to the linear speed of the working web, by a motor 15 (or 16, 14) prior to a splicing operation. The pulse generators are connected to AND and OR gates associated with a control circuit including counters 22, 23, 24 and relays 45, 65, 56, 67. The arrangement is such that the indexing motor 8 of the stand 1, the accelerating motor 15 (or 14, 16) of the replacement roll and the splicing device 12 are automatically actuated in the correct sequence to effect the splicing operation when the exhausting roll 2 reaches a predetermined diameter, this operation being controlled by the signals from the pulse generators 17 (or 18, 19), 20 and 21.
Patent GB-1178490-A (GB)
Title: Aqueous Alkyd Stoving Lacquers
Inventor: DHEIN ROLF
IPC: C08G63/553
Filed: 1967-12-21
Abstract: 1,178,490. Aqueous alkyd stoving lacquers. FARBENFABRIKEN BAYER A.G. 21 Dec., 1967 [22 Dec.. 1966], No. 58194/67. Heading C3R. An aqueous stoving lacquer is made by (a) condensing a dicarboxylic acid, a polyhydric alcohol with at least three hydroxyl groups, a fatty acid or ester thereof and, optionally, a non-fatty acid to give an alkyl resin of acid number not more than 8, (b) reacting this alkyd at 100‹ to 160‹ C. with tetrahydrophthalic acid, endomethylene tetrahydrophthalic acid or a homologue of tetrahydrophthalic acid or with an anhydride of such an acid to give a semiester with a total acid number of 40 to 60, (o) neutralizing the semi-ester to a degree of not more than 95% by addition of an amine and (d) diluting the resulting amine salt with water and, optionally, an organic solvent. Suitable components for making the alkyd (a) are: dicarboxylic acids-adipic, phthalic and isophthalic acids; polyhydric alcohols-glycerol, trimethylol propane, pentaerythritol, dipentaerythritol and sorbitol and mixtures thereof with ethylene glycol, diethylene glycol, butanediols and neopentylene glycols; fatty acid components-various drying, semi-drying or non- drying oils, their transesterification products with polyols and fatty acids and their dimers obtainable therefrom, also the fatty acids obtainable from paraffins and a mixture of C 6  to C 12  fatty acids; non-fatty acids-benzoic, tert.-butylbenzoic and resinic acids. The organic solvent used in step (d) may be an ether, ester, ketone, ether-alcohol or keto-alcohol. Coating compositions are made by adding to the alkyd lacquers an aminoplast (e.g. a melamine-formaldehyde condensate), a pigment (e.g. TiO 2 ) and possibly a siccative or defoaming agent.
Patent GB-1360822-A (GB)
Title: Apparatus for making concrete structures
IPC: E02D5/18
Filed: 1971-06-23
Abstract: 1360822 Barrier walls TAKENAKA KOMUTEN CO Ltd 23 June 1971 [2 July 1970] 58543/73 Heading E1H The subject matter of this specification is identical with that described in Specification 1360821 but the claims are concerned with the apparatus.
Patent GB-1255566-A (GB)
Title: Modified saturated polyesters
Inventor: ILLING GERHARD
IPC: C08G18/42
Filed: 1969-12-19
Abstract: 1,255,566. Polyester/polylactam block copolymers. HUTCHINSON (RAMSEY) Ltd. 19 Dec., 1969 [3 Jan., 1969], No. 61902/69. Heading C3R. A block copolymer suitable for injection moulding is obtained by mixing together at 245-275‹ C. at least one saturated linear highly crystalline polyester, and at least one high molecular weight polylactam in the presence of at least one cross-linking agent and 0.05 to 0.2% by weight of water. The cross-linking agents are diisocyanates, polymeric diisocyanates, reaction products of poly(glycol terephthalate) (2 mols) with naphthalene diisocyanate (3 mols) of M.W. 2000-6000 or the reaction product of a secondary amine or alcohol with a diisocyanate. In the examples poly(ethylene terephthalate) is copolymerized with (a) polycaprolactam and diphenyl methane-4,4<SP>1</SP>-diisocyanate and (b) with polycaprolactam, polylauryllactam, the polyester from terephthalic acid and 1,4-bis- (hydroxymethyl) cyclohexane, and a blocked isocyanate designated hexamethylenedicarbonamide caprolactam. Optical ingredients are glass fibres oiled with tris(nonylphenyl)phosphite, flocked silicic acid, calcium stearate, diisooctyl adipate, carbon black and sodium hydrogen phosphite.
Patent GB-719538-A (GB)
Abstract: 719,538. Surgical optical instruments. GUTTMAN, A. P. Feb. 28, 1952 [March 2, 1951], No. 5115/51. Class 81(2) A device for viewing the working surfaces of joints or the interior of body cavities comprises a telescope associated with a tubular cutting member. The telescope 1, having an eyepiece 2, is axially slidable within a tubular cutting element 4, the tip 7 of which is bevelled and sharpened. The relative axial positions of the telescope and cutter are determined by engagement of studs 10 with slots 13 in the outer member. The telescope is retracted within the cutting element while the latter is being thrust through the tissue and it is then moved forward to make the desired observation. It is also proposed to provide a further external sleeve to replace the cutting member 4 after an initial incision has been made. This has a closed, rounded end, see Fig. 7 (not shown), and a lateral aperture adjacent the end of the telescope, and the edge of this aperture is sharpened so that axial movement of the sleeve, relative to the telescope, can cut away a sample of tissue.
Patent GB-777944-A (GB)
Abstract: 777,944. Electrolytic purification of liquids. BRITISH PETROLEUM CO., Ltd., McNEILL, E. and ROBSON, B. Jan 6, 1955 [Jan. 20, 1954], No. 1695/54. Class 41. Aqueous alkaline solutions typically caustic soda, containing mercaptides are electrolytically regenerated by using an anode comprising a liquid-pervious pack of a number of thin elements, preferably fine nickel wire cloth, compressed as at 14 between impervious end plates 12, 16 and each having a central hole in register with a hole in one of the end plates, viz. plate 12, the solution being passed continuously through said hole and so radially through the pack of thin elements. Preferably the current density is controlled to avoid production of oxygen so that the mercaptides are changed into disulphides. As shown, the cell has an asbestos diaphragm 28 in a rubber frame 30 and the cathode 10 and anode 12 are spaced from it by metal frames 24, 26 which are insulated from the electrodes by rubber gaskets 32, 34. The anode spacer has a port 40 for the solution under treatment which passes through the anode while the cathode spacer has ports 42, 44 for the external circulation of the aqueous alkaline catholyte to permit removal of hydrogen. A constant level device is provided in the anolyte extraction line and nitrogen is passed continuously through the containers for the treated and untreated solutions to exclude oxygen. Specification 762,965 is referred to.
Patent GB-2002642-A (GB)
Title: Improvements in toy wheeled vehicles
IPC: A63H17/26
Filed: 1978-07-27
Abstract: A toy wheeled vehicle has a front suspension system (10) which permits the front wheels (8) to move rearwardly against a bias (12) so as to reduce the distance between the front and rear wheels (8, 3) when the front wheels (8) encounter an obstacle. This reduction is accompanied by rearwards pivotal movement of the vehicle about its rear axle (2) whereby the front wheels (8) are raised to enable the vehicle to move over the obstacle. <IMAGE>
Patent GB-2002175-A (GB)
Title: Temperature sensitive elements
IPC: H01C17/06
Filed: 1978-08-02
Abstract: An electrically resistive element suitable for use in a resistance thermometer comprises an electrically conducting path 4 in the form of a metallic film of thickness at least 2.5 microns deposited upon the surface of an electrically non-conducting substrate 2 by a screen printing technique. The metallic film preferably comprises one of the metals copper, silver, gold, iron, cobalt, nickel, ruthenium, rhodium, palladium, iridium, platinum and alloys containing at least one of these metals. <IMAGE>
Patent GB-2002766-A (GB)
Title: Process of extracting organic acid by-products from an oxidation mixture obtained by oxidation of a cycloalkane
IPC: B01D11/04
Filed: 1978-08-10
Abstract: A process for extracting and recovering organic acid by-products present in an oxidation mixture obtained by oxidation of a cycloalkane e.g. cyclohexane or cyclopentadecane with oxygen or oxygen-containing gas comprises conducting the extraction using an alkali solution. The alkali which may be an alkali metal hydroxide or carbonate, an alkaline earth metal hydroxide, ammonia or an amine is used in an amount of 0.1 to 50% by weight of the amount required to neutralize all of the organic acid by- products in the oxidation mixture. This process mitigates the problems of formation of high molecular weight materials present in water extraction processes and avoids having to use acid to convert the salts of the organic acid by-products back to the free acids.
Patent GB-2027404-A (GB)
Title: Handrails for dual path moving walkways and escalators
IPC: B66B23/04
Filed: 1978-08-12
Abstract: A dual path moving walkway or pair of escalators or walkways 10 and 11 is provided with two recycling handrail belts 20 and 21. The handrail on the outer balustrade of one path or escalator 10 crosses between the pair of paths or escalators and on to the outer balustrade of the other by guides B and C, which impart a twist to the belt and allows it to bend about its transverse axis. The inner belt passes from one inner balustrade to the other via a horizontal pulley. Removable panels in the balustrades permit removal of the handrail belts from their guides and then removal from the balustrades. <IMAGE>
Patent GB-2006843-A (GB)
Title: Dryer Fabric
IPC: D21F1/00
Filed: 1978-10-30
Abstract: A dryer fabric is woven from monofilament polymeric warp yarns of flattened cross-section and polymeric weft yarns whose cross-section may be circular, hollow, flattened or triangular, the fabric may be single or multiply.
Patent GB-2032841-A (GB)
Title: Manufacture of block bottom bags
IPC: B31B37/00
Filed: 1978-11-04
Abstract: A method of producing a block bottomed bag (Fig. 3) from flexible, thermoplastic material comprises passing a tube (22) of such material through delivery rolls (19a, 19b) and clamping means (14) to a support ring (15) around which a radially directed flange (22a), at the end of the material, is formed. The delivery rolls (19a, 19b), clamping means (14) and support ring (15) are mounted on a common framework (11), the latter two so as to be movable in synchronism towards a resiliently mounted platen (16) over which a web (24) of similar material is fed. The flange (22a) is brought into end engagement with the web (24) and fused thereto by an electric wire or heated oil filed tube (17) supported by the platen (16). The tube (22) is then severed by cutting means associated with the clamp (14) and the web (24) is cut around the fused area to form the bag. The support ring (15) and clamp (14) are then withdrawn and the operation repeated, the length of the bag being governed by the adjustable spacing between the clamp (14) and the support ring (15). <IMAGE>
Patent GB-2008720-A (GB)
Title: A drive shaft assembly and a method of making same
IPC: F16D1/068
Filed: 1978-11-24
Abstract: A drive shaft assembly 10 has a tubular, fibre reinforced plastic shaft portion 11 within each end of which a cylindrically annular metallic sleeve 25 is received. Anchoring means in the form of an annular rib 29 and/or ridges (30) and furrows (31) on the radially outwardly directed surface 26 of each sleeve 25 are bonded to a radially inwardly directed surface 32 of the shaft portion 11 primarily by adhesion between the matrix of the fibre reinforced plastic material 12 and the anchoring means, and, if additional bonding is required, by a mechanical interlocking. A yoke 13 of a universal joint (14) is secured to each sleeve 25. The preferred method for making the drive shaft assembly is to position the two sleeves 25 on a mandrel (45) and apply resin impregnated reinforcing material over the mandrel and a sufficient portion of each sleeve 25 to embrace the anchoring means thereon. The resin is then cured and, if the mandrel is reusable, it is removed before the yoke 13 is affixed to each sleeve 25. The resulting assembly 10 may then be dynamically balanced with suitable weights (42) being secured to the sleeve 25 in the required disposition. <IMAGE>
Patent GB-2047545-A (GB)
Title: Respirators
IPC: A62B9/06
Filed: 1978-12-08
Abstract: A respirator of the type used by aircrew comprises a hood 20 and visor 21 combination adapted to envelop the head of the user, a breathing mask 22 carried in the visor, and means which enable the user to unblock his ears during change of altitude by occluding his nose. The noise occlusion means comprises a pair of impingement members 10, preferably of spheroidal surface, and a sling formed of reticulated fabric, and is arranged so that the sling will, under pressure from the nasal septum, bring the impingement members 10 to bear on the user's nose lobes when the visor 21 is pushed up along the user's face. <IMAGE>
Patent GB-2015505-A (GB)
Title: Stabilization of 1,4-Butanediol
IPC: C07C27/00
Filed: 1979-01-17
Abstract: 1,4-Butanediol, which has been found to autoxidize under ambient conditions to produce unwanted acetal impurities, is stabilised by the addition of an antioxidant which effectively inhibits this undesired autoxidation.
Patent GB-2014133-A (GB)
Title: Production of alkylene oxides using a silver catalyst
IPC: B01J23/50
Filed: 1979-01-19
Abstract: Olefine oxides are produced by contacting an olefine with oxygen in the presence of a silver-containing catalyst and a chlorine-containing reaction modifier; the performance of the catalyst is improved by contacting it with a nitrate or nitrite forming substance for example nitric oxide.
Patent GB-2017011-A (GB)
Title: Segregated storage
IPC: B60P3/22
Filed: 1979-03-14
Abstract: A vessel (1) for containing at least two different liquids or other fluid materials (2 and 7), either simultaneously or successively, without contamination of either one by the other, comprises a flexible bag (3) or other variable- volume container which lies within the vessel (1), the container (3) and the vessel (1) (or, alternatively, another variable-volume container in the vessel), each having its own inlet/outlet means (8 and 9 and another not shown) to enable the container (3) and the vessel (1) in a region outside the container (3) (or, alternatively, the two containers) to be filled and emptied independently of one another. <IMAGE>
Patent GB-2017595-A (GB)
Title: Engine Bonnet for a Motor Vehicle
IPC: B62D49/06
Filed: 1979-03-15
Abstract: An engine bonnet made in several parts, for a motor vehicle such as a tractor, must be readily installable and removable to allow rapid access to all sides of the vehicle engine, and should at the same time reduce the noise emanating from the engine. The invention provides a bonnet composed of two separate side parts 33, 34 and a separate upper bonnet portion 35, all provided with fasteners, so arranged that each side portion is mounted by moving the side portion rearwardly of the vehicle to engage its rear fasteners 46 with receiving elements 27 on the vehicle framework, and subsequently moving the front part of the side portion transversely and inwardly of the vehicle to engage fasteners 12, 13 the upper portion being mounted by engaging a rear fastener 30, 31 and pressing the front part downwardly to engage fasteners 38, 14. The bonnet portions may then be locked in position. <IMAGE>
Patent GB-2018069-A (GB)
Title: Encoding meter readings
IPC: G06M3/06
Filed: 1979-03-20
Abstract: Display apparatus for a meter comprises a bank of co-axial counter wheels 4 having printed round the periphery thereof, instead of or in addition to conventional numbers, elements of an optical bar code known per se. The elements of each wheel are brought successively into register with a common window upon rotation of the wheel and the meter can be read by scanning a light pen across the window. The invention can be applied to, for example, electricity, gas, oil or water meters and magnetic rather than optical codes can be employed. Initiating and terminating codes 10, 12 and a meter identity code 14 may also be provided. Logic may be provided to discriminate against false lines, arising for example from the gaps between the wheels. <IMAGE>
Patent GB-2027638-A (GB)
Title: Releasable connection of a surgical cutter blade support to a drive
IPC: A61B17/32
Filed: 1979-07-12
Abstract: A toothed cutter is provided between a pair of side walls 22, 23 releasably connected with a gear housing 12 by a pair of studs 17, 18 on the housing engaging holes 33, 34 in the side wall 22 and by a screw and nut passing through aligned openings 19, 26 in the housing, the side walls and an intermediate layer 24. <IMAGE>
Patent GB-2026825-A (GB)
Title: A ploughing implement
IPC: A01B3/26
Filed: 1979-08-07
Abstract: A ploughing implement for deep ploughing is provided comprising a support structure (17, 19, 22) attachable to the front of a tracklaying driving vehicle (11), and adapted to carry a plough (15), a coulter (14) and a pair of ground wheels (12, 13). The implement is controllable in a horizontal plane by pivoting it about a vertical pivot (20) by means of a hydraulic actuator (35), and the plough (15) can be additionally pivoted in a vertical plane about a horizontal pivot (21) by means of a second hydraulic actuator (30). A beam (22) which mounts the wheels (12, 13) and coulter (14) is pivotally mounted (at 23) on an arm (19) which mounts the plough (15) and is itself pivotally mounted (at 20) on a bracket (17) attachable by standard means (18) to the lifting organ (16) of the vehicle (11). The implement can be lifted above ground level by raising the lifting organ (16). <IMAGE>
Patent GB-2031794-A (GB)
Title: Bonding material to a substrate
IPC: G01J1/02
Filed: 1979-08-17
Abstract: A method of permanently attaching a material, particularly a pyroelectric material such as triglycine sulphate (TGS), to a polymer film substrate by exposing a surface of the film to moisture so that water is adsorbed on the surface; the surface and the material are then brought together, causing mutual attraction and a bond being instantly formed when they are in contact.
Patent GB-2032172-A (GB)
Title: Atcutquartz resonator
IPC: H03H9/19
Filed: 1979-08-23
Abstract: An AT-cut quartz resonator is disclosed, wherein the length l, the width w and the thickness t of the quartz crystal plate are respectively chosen in the directions of an electrical axis (X-axis), an optical axis (Z'-axis) and a mechanical axis (Y'-axis), the width-to-thickness ratio w/t is chosen in the range of 2.0 to 2.8 and the length-to-thickness ratio l/t is chosen less than 25. Consequently, an AT-cut quartz resonator of miniature size having high Q-values of the major mode and excellent frequency-temperature characteristics of the vibration frequency is realized.
Patent GB-2033764-A (GB)
Title: Scenery units
IPC: A63J1/02
Filed: 1979-08-24
Abstract: The units, particularly for representing vegetation, consist of a tray (1) and a flexible cover (3) supported on the tray by inflatable tubes (24) so arranged as to give the cover the required undulating form. Inflation may be achieved by connecting the tubes to an air manifold, supplied by a fan, via selectively and individually operable valves. The cover preferably overhangs the edge of the tray to conceal it and its wheels (2). <IMAGE>
Patent GB-2034876-A (GB)
Title: Solar heater
IPC: F24S10/70
Filed: 1979-09-06
Abstract: A solar heater is formed from first, second and third sheets (12, 14, 16) of flexible material joined at or near their peripheries. The sheets define a liquid compartment (18) between the first and second sheets (12, 14), and a gas compartment (20) between the second and third sheets (14, 16). Each compartment (18, 20) has at least one closable opening leading into it. An insulative blanket (46) is removably located adjacent the first sheet (12) by suitable locating means (48). <IMAGE>
Patent GB-2061672-A (GB)
Title: Electro-optical telephone line interface unit
IPC: H04L25/26
Filed: 1979-09-13
Abstract: An electro-optical interface allows data communication along a telephone line without electrically connecting the digital equipment thereto. A standard modem 16 and line connection unit 15 are connected to the lines 12. A logic-to-optical converter 18 converts the modem output to light signals and vice- versa. The light signals are fed along optical fibres 19, 25 connected between converter 18 and a connector 20. A corresponding mating connector 22 with fibres 23, 24 feed the signals to and from the digital equipment 11. <IMAGE>
Patent GB-2051381-A (GB)
Title: Apparatus for Checking Voltage Detector Test Instruments
IPC: H02N11/00
Filed: 1980-02-08
Abstract: Checking apparatus for checking correct operation of a voltage detector test instrument having a glow- discharge voltage detector element comprises a mechanically-operable piezo-electric voltage generator 101, 102, having output terminals 103, 111, between which is connected, as a shunt, a spark gap 116 acting as a voltage limiter whereby the output voltage at 138 applied to the voltage detector instrument can be limited to a precise value appropriate to the operating threshold voltage of the instrument. The spark gap 116 may be adjustable or spark gaps with different settings may be selectively brought into circuit by a switch to enable the voltage output to be varied. Instead of the spark gap 116, the shunt-connected voltage limiter may comprise at least one resistor whose resistance varies with voltage. The checking apparatus may be incorporated in the voltage detector instrument, or it may be an independent unit in its own separate housing, as shown. <IMAGE>