baber/WOPTO huggingface dataset:
Patent GB-1386892-A (GB)
Title: Process for the preparation of high molecular weight hydroxy polyurethanes which are soluble on organic solvents
IPC: C08G18/08
Filed: 1972-10-06
Abstract: 1386892 Hydroxypolyurethanes BAYER AG 6 Oct 1972 [6 Oct 1971] 46140/72 Heading C3R Hydroxypolyurethanes having average molecular weights up to and above 250,000 which are soluble in organic solvents are prepared by a 3-stage process from at least one linear dihydroxy compound and at least one diisocyanate, at an NCO/OH ratio of less than or equal to one, wherein in a first reaction stage (a) the starting compounds are reacted at a specific reaction temperature, preferably from 100-160 C. in a non-polar or slightly polar solvent, preferably having an E T  value of less than 35 Kcal./mol. at 25 C., the reaction preferably being continued until the viscosity reaches a maximum, and in a stabilizing stage (b) the reaction mixture is cooled before thermal degradation sets in, preferably to 60-100 C., and is stabilized by subjecting it to a thermal after-treatment at this temperature until no more free isocyanate can be detected, and in a final stage (c) the solid polyurethane is obtained by removing the solvent used as reaction medium, preferably in a vacuum evaporator screw in which the temperature increases stepwise along the length of the screw from 100-145 C., and a vacuum of 1-100 mm. Hg., thus effecting a thermoplastic after-treatment. A polar solvent or solvents may be added to the reaction mixture during stage (b). Stage (a) may be carried out in the presence of a catalyst, e.g. iron acetylacetonate for polyurethane formation. The polyurethane may be granulated after leaving the evaporator screw. The dihydroxy reactant is preferably a polyester having an average molecular weight of 500- 5000. In the examples hydroxypolyurethanes are prepared using as the diisocyanate either tolylene diisocyanate or diphenylmethane, 4-4<SP>1</SP>- diisocyanate and as the dihydroxy compound one of the following polyesters: a polyester of adipic acid and hexane 1-6-diol, a polyester of adipic acid and butane 1-4-diol, a polyester of adipic acid and ethylene glycol alone and mixed with a polyester of adipic acid and diethylene glycol, using toluene as solvent. Uses.-Coatings; adhesives.
Patent GB-1372129-A (GB)
Title: Integrated circuit
IPC: H01L27/04
Filed: 1972-10-06
Abstract: 1372129 Integrated circuits INTERNATIONAL BUSINESS MACHINES CORP 6 Oct 1972 [20 Dec 1971] 46160/72 Heading H1K Circuit-cells C of a monolithic integrated logic circuit are interconnected by concentric arcuate conductive paths 12, 14-16, 18, 20, 22, 24 and radial paths 50, 59, L thereby increasing the packing density. Preferably the arcuate paths are metal-on-silicon oxide tracks defining complete circles, diffused cross-unders 54 being provided where necessary to avoid shorting radial and arcuate tracks. The metal tracks and silicon 'oxide layer are covered by a sputtered quartz coating, external contact being made therethrough by Pb/Sn solder balls 30, 32, 34, &c., on Cr/Cu/Au multilayer metallizations. The invention is particularly applicable to logic circuits, and two examples of isolated circuit cells C containing respectively single emitter and double emitter transistors are disclosed. The regions of the cells C and the radial circuit features may be shaped as sectors of circles to further increase the packing density.
Patent GB-1021586-A (GB)
Title: Improvements in or relating to dispensers for aerosol devices
Inventor: OWENSMITH ALAN SIDNEY LEWIS
IPC: B65D83/16
Filed: 1963-11-26
Abstract: 1,021,586. Pressurized dispensing containers. A. S. L. OWENSMITH. Nov. 26, 1964 [Nov. 26, 1963], No. 46689/63. Heading F1R. A dispenser for supporting and actuating a pressurized dispensing container 4 comprises a support 1, e.g. for wall mounting, carrying a clamp 6 for the container 4, and a solenoid 2 for moving the container valve button 22 relative to the container or vice versa. The valve operating head 21 of solenoid plunger 12 is axially adjustable by screw 19 relative to valve button 22, and is biased upwardly by spring 17. Support 1 has a cover 26a secured by a lock 28. Container clamp 6 may have resilient padding and may incorporate a lock. A plurality of the dispensers may be controlled by a common electrical system and timing means for intermittent actuation. In another embodiment, (Fig. 6, not shown), solenoid 11a has a pivoted armature 28, 29. Grooves 35 on support 1a are selectively engageable by container rim 34.
Patent GB-1433473-A (GB)
Title: Process for cultivating ethanol-assimilating yeasts
IPC: C12N1/32
Filed: 1974-10-29
Abstract: 1433473 Yeast MITSUBISHI GAS CHEMICAL CO Inc 29 Oct 1974 [9 Nov 1973] 46705/74 Heading C6F A process for cultivating ethanol-assimilating yeasts, using ethanol as a main carbon source, involves cultivating the yeast in a culture liquor at an ethanol concentration of not more than 0.8 wt per cent, a dissolved oxygen concentration of 0.1-30 ppm, a dissolved carbon dioxide concentration of 0.38-380 ppm, pH of 2.0 to 5.0 and temperature of 25 to 48‹C. The Examples are directed to the cultivation of Pichia farinosa miso Mogi (IAM 4526), Torulopsis enokii (ATCC 20432), Hansenula alcolica (NRRL Y-8025), Candida alcomigas (NRRL Y-8023), Torulopsis  methanothermo (ATCC 20434), Saccharomyces steineri, Saccharomyces uvarumi, Saccharomyces carlsbergensis, Terulspsis methanophiles nov. ep. (ATCC 20433), Saccharomyces cerevisiae ellipsoideus (IAM 4140), Saccharomyces cerevisiae, Candida utilis and Lipomyces sparkey, respectively.
Patent GB-1278943-A (GB)
Title: Improvements in or relating to dental handpieces
IPC: B23B31/117
Filed: 1969-09-23
Abstract: 1278943 Dental handpieces KALTENBACH & VOIGT 23 Sept 1969 [18 Oct 1968] 46822/69 Heading A5R [Also in Division B4] A straight, Fig. 1, (not shown), or angled, Fig. 2, dental handpiece for receiving a tool or a dental mirror has a hollow shank (1), 7 in which is fitted a chuck 3 consisting of two concentric tubular sleeves 15, 16 the inner sleeve fitting closely within the outer, the outer sleeve being made of rubber or similar material and the inner of plastics material, e.g. polyamide. The friction between the outer and inner sleeves is greater than that between the inner sleeve and the tool. The inner sleeve 16 abuts against a removable guide sleeve 17 at one end and against an annular shoulder formed by member 18 at the other end, whereas the outer sleeve terminates short of the ends of the inner sleeve thus forming annular spaces 19, 20. When a tool is inserted into sleeve 16 a pressure is exerted on sleeve 15 which can yield into spaces 19, 20 and the tool is thus held within the chuck. The shank 7 is formed as part of a rotor of a turbine which is driven by the action of air on vanes 8 and water may be sprayed via conduits 11, 12, 13 and jets 14 on to the tool or the tooth being treated.
Patent GB-1324026-A (GB)
Title: Web or sheet processing apparatus
IPC: G03D5/04
Filed: 1970-10-05
Abstract: 1324026 Coating apparatus EASTMAN KODAK CO 5 Oct 1970 [3 Oct 1969] 47287/70 Heading B2L [Also in Divisions D1 G2 and G3]  Web or sheet processing apparatus, e.g. for hardening an exposed photographic emulsion and subsequently washing off the unhardened portions, comprises a pair of rollers 18, 20 at least one of which is driven, an endless belt 24 supported by the rollers and of a length so that it sags therebetween, a pair of side walls disposed on opposite edges of the belt to form with the sagging portion of the upper reach thereof a reservoir 40, and liquid supply means 26 disposed above the upper reach of the belt upstream of the sagging portion for applying a curtain of liquid to a web fed onto the upper reach of the belt upstream from the liquid supply means, the reservoir serving to collect the liquid and provide a pool through which the web is carried by the belt. An idler roller 22 or a guide member in the form of a shoe is disposed below the upper reach of the belt. The depth of the reservoir may be controlled by baffle plates disposed at the side of the belt or by overflow openings in the side walls of a tank within which the belt is disposed. The web after leaving the belt 24 then passes to a further endless belt 34 above which are disposed water spray nozzles 36. Alternatively, Fig. 3 (not shown), the web, after passage under a single water spray nozzle, passes into a two trough developing and fixing apparatus of known form where it is passed through the drying section only.
Patent GB-1115718-A (GB)
Title: Rope clamp
IPC: F16G11/02
Filed: 1966-10-02
Abstract: A rope clamp comprises a sleeve which has an axial passage in which two rope portions are inserted and which is deformed into engagement with the rope portions such that the deformed sleeve comprises a cylindrical portion of circular cross-section and a tapering end portion tapering from the circular cross-section to an oval cross-section.  As described the rope portions form the eye of a rope, one rope portion extending through the clamp and the other rope portion extending into the clamp through the end portion.  The other end of the clamp may be of frusto-conical shape with a circular cross-section throughout.  The clamp may be pressed from an aluminium tubular blank.
Patent GB-1534884-A (GB)
Title: Axial flow fans
IPC: F04D29/54
Filed: 1975-11-18
Abstract: 1534884 Axial flow fans PAPST MOTOREN KG 18 Nov 1975 [18 Nov 19741 47500/76 Heading F1C An axial flow fan driven electrically by a motor 62, Fig. 2, of the external rotor type comprises blades 12-16 within a flow channel 5 having inlet 7 and outlet 8 and which converges to and diverges from a waisted portion extending close the periphery of the fan blades, the rotor shaft 36 being mounted with axial clearance in bearings 20, 21 and engaged on the inlet side by a bearing formed of a molybdenum disulphide impregnated plastics disc 222 and a felt disc 122 saturated with lubricant, both mounted in a flanged disc 23 fixed to the casing 1 by spokes 24-27, Fig. 1 inclined forwardly in the direction of fan rotation relative to the suction side edges of the fan blades thus facilitating noise reduction. Convergent section 35 and divergent section 34 of the flow channel 5 form inlet and outlet ducts of non-circular cross-section having outwardly projecting corner areas e.g. 95- 98.
Patent GB-1449016-A (GB)
Title: Rack-and-pinion steering gear for motor vehicles
IPC: B62D5/22
Filed: 1973-10-11
Abstract: 1449016 Power-assisted steering mechanism CAM GEARS Ltd 11 Oct 1973 [24 Oct 1972] 47539/73 Heading B7H [Also in Division F2] In a vehicle steering mechanism comprising a rack 1 meshing a pinion 2, an hydraulic piston 10 and cylinder 11 steering damping or power assistance device is operatively connected between one end of the rack and the vehicle chassis, and two ball-and-socket joints 8, 9 for connection to track rods 6, 7 are located on the rack bar between the rack 1 and the hydraulic device. The cylinder 11 is formed integrally with the rack 1. In a modification, the rack is provided at its end with a piston 10<SP>1</SP>, Fig. 2, working in a cylinder 11<SP>1</SP>.
Patent GB-1489768-A (GB)
Title: Method for reducing the electrical couplings in telecommunications cables
IPC: H01B13/02
Filed: 1974-11-05
Abstract: 1489768 Reducing coupling in telecommunication cables SIEMENS AG 5 Nov 1974 [5 Nov 1973] 47811/74 Heading H1A To reduce electrical coupling in telecommunication cables comprising at least two conductor cores 9 stranded together, conductors 8 are stranded together with a direction of twist which is reversed at successive points along the cable, the lay length varying in each section of constant twist direction and the spacing between said successive points being varied in steps between two values and on reaching one value is restored in one larger step to the other value the said larger step being equal to at least half the maximum value of Sn.Sm/Sn + Sm where Sn and Sm are any two values of lay length. This formula is said to represent the period of a sine or cosine curve representing the distribution of coupling along the cable. The apparatus of Fig. 4 comprises storage devices 5 and 18 rotating at different speeds and having storage capacities oppositely variable by reciprocating movement of plate 12 carrying rollers 4 and 19. The direction of twist is reversed when the direction of movement of frame 12 reverses. A length pulse emitter emits a voltage pulse per unit length of core 9 produced and a counter starts counting the pulses after the frame has moved a basic distance from the centre position corresponding to the production of a length ¢To of core. The counter reverses the movement of the frame after a number of pulses which increases by one on each successive movement, i.e. after 0, 1, 2, 3 up to a pulses thus steadily increasing the distance moved between reversals of twist.
Patent GB-1278434-A (GB)
Title: Tranquilizing and antiemetic agents
IPC: C07D209/08
Filed: 1969-09-30
Abstract: 1278434 (1,4 - Dioxa - 8 - azaspiro[4,5]dec-8- ylmethyl)indole derivatives ALDRICH CHEMICAL CO Inc 30 Sept 1969 [2 Oct 1968] 48074/69 Heading C2C The invention comprises compounds (I) of formula wherein R<SP>1</SP>, R<SP>2</SP>, R<SP>3</SP> and R<SP>4</SP> are each H, C 1-8  alkyl, C 2-8  alkenyl, C 2-8  alkynyl, phenyl or benzyl, and a -process for making them by reacting in an inert organic solvent a 2-R<SP>1</SP>-1,4-dioxa-8-azaspiro[4,5]decane (II) with an appropriately substituted 5 - methylene - 6,7 - dihydroindol-4 (5H)-one. The latter are prepared by reacting the corresponding 5-dimethylaminomethyl-6,7- dihydroindol-4(5H)-one (III) methiodides with aqueous alkali. I may also be prepared by reacting II with a 6,7-dihydroindol-4(5H)-one (IV) and CH 2 O. III are prepared by reaction of IV with Me 2 NH 2 -HCl and CH 2 O. Pharmaceutical and veterinary compositions for oral or parenteral administration comprise compounds of the above formula, which have tranquillizing and antiemetic activity.
Patent GB-1463203-A (GB)
Title: Metallic thermal insulation element
IPC: F16L59/02
Filed: 1974-11-07
Abstract: 1463203 Reactors DIAMAND POWER GmbH 7 Nov 1974 [22 Dec 1973] 48178/74 Heading G6C [Also in Division F2] A thermal insulation element comprises a plurality of metallic sheets having a thickness t, the sheets being disposed in the element in layers and being so profiled to a depth of between 5t and 25t as to result in a moment of inertia of up to 100t<SP>3</SP> per unit length and to require for their deformation an energy in the range 10 to 150 cm. kg./c.c. In the embodiment described, a coolant duct 1 disposed inside a safety vessel of a nuclear reactor is surrounded at a spacing by a metallic insulation element 2. The space 3 left clear between the duct 1 and the insulation element 2 permits free expansion of the duct 1. On the side remote from the duct 1, the element 2 bears against a deflection limiting device in the form of a structural frame 4. In the case of an accident, e.g. rupture of the duet 1, the forces arising due to the escape of coolant are diminished by the deformation of the element 2 and do not therefore act, at least fully, upon the frame 4. The element 2 comprises a plurality of profiled sheets (5) (Figs. 2 and 3, not shown) having trapezium-shaped corrugations. The corrugations in adjacent sheets may intersect each other at right angles or be oriented in the same direction. In the latter case, the profiled sheets (5) may be added to intermediate planar sheets (6). In an alternative embodiment (Fig. 4, not shown), the energy-absorbing thermal insulation elements are limited to four equispaced portions of the periphery of the duct and are connected together by metallic insulation elements of known type comprising only planar sheets.
Patent GB-1492546-A (GB)
Title: Cooling device for the wheel of a continuous casting machine
IPC: B22D11/06
Filed: 1974-11-07
Abstract: 1492546 Continuous casting G PROPERZI 7 Nov 1974 [12 Nov 1973] 48200/74 Heading B3F Coolant sprayed on to the undersurface of the rim 5 of a wheel-and-belt casting machine, from nozzles 6 on an inner, annular header 1, is removed from the surface as the rim rotates, by vanes 7 which form a succession of independent cooling sections each defined between header 1 and moving rim 5 by a pair of consecutive vanes 7 and containing at least one nozzle 6, e.g. two nozzles as shown. The vanes 7 are hinged on the coolant header 1 and spring-urged against the wheel rim 5 where they are forked to shape to the rim surface for the coolant removal. They are of V-section with the apex towards the oncoming stream on the rim. The reverse face directs spray from a nozzle 6 towards the rim surface.
Patent GB-1437640-A (GB)
Title: Clutches
IPC: F16D13/71
Filed: 1974-11-07
Abstract: 1437640 Friction clutches FICHTEL & SACHS AG 7 Nov 1974 [8 Nov 1973] 48286/74 Heading F2C Vibrations of a friction clutch presser plate 2 are damped by a circumferential series of spring pressed damping elements 12 which bear against the presser plate. As shown friction damping elements 12 are urged by springs 9 into engagement with a cylindrical surface 13 on the presser plate 2. The springs 9 are secured to a clutch housing 1 by rivets 7 which additionally secure one end of tangential or radial straps 4 to the housing 1. The other end of each strap 4 is secured by a rivet 8 to the presser plate 2. The presser plate 2 is urged towards a driven disc by a diaphragm spring 3. In Figs. 2 and 3 (not shown) the damping elements comprise leaf springs which bear directly on a conical surface of the presser plate. The conical surface may be tapered towards, Fig. 2, or away from, Fig. 3, the friction surface of the presser plate. The former provides increased damping as wear occurs whilst the latter provides increased damping during clutch disengagement. In Fig. 4 (not shown) leaf spring damping elements additionally provide an axial force on the presser plate to move the latter towards its disengaged position.
Patent GB-1085539-A (GB)
Title: Improvements in or relating to apparatus for cooling of rubber sheeting
Inventor: JONES ANTHONY WINN
IPC: B29B7/00
Filed: 1965-11-15
Abstract: An apparatus for cooling rubber sheeting comprises an endless conveyer having supports 6 for the sheets, said supports being disposed normally to the direction of movement of the conveyer, and means 3 for spraying the rubber sheeting with cooling fluid. <PICT:1085539/C3/1>
Patent GB-1130935-A (GB)
Title: Cyclohexylcyclopentane derivatives
Inventor: BRAIN EDWARD GEORGE
IPC: C07C45/29
Filed: 1966-10-28
Abstract: 1,130,935. Cyclohexylcyclopentane derivatives. BEECHAM GROUP Ltd. 23 Oct., 1967 [28 Oct., 1966], No. 48425/66. Heading C2C. The invention comprises compounds of the formula where R 1  and R 2  are alkyl of 1-6 carbon atoms or complete a 5- or 6-membered carbooyclic ring, R 3  and R 4  are H or together complete an additional bond and X is (H, OH) an oxygen atom or the group -YCH 2 CH 2 Y- where Y is O or S. The compounds are prepared by reducing compounds of the formula where X<SP>1</SP> is as defined for X and R 5  is H or alkyl of 1-6 carbon atoms by using metallic lithium in liquid ammonia and then treating with oxalic acid to give a product wherein R 3  and R 4  form a bond, and if desired, catalytically hydrogenating to give a product wherein R 3  and R 4  are H, and if desired, oxidizing a compound in which X is H, OH to the ketone, and if desired, when X is a ketal or thioketal group, removing this group by hydrolysis to give the ketone.
Patent GB-1029900-A (GB)
Title: By-pass gas turbine jet engine
Inventor: COPLIN JOHN FREDERICK
IPC: F23R3/00
Filed: 1964-11-27
Abstract: 1,029,900. Gas turbine by-pass jet engines. ROLLS-ROYCE Ltd. Nov. 27, 1964, No. 48431/64. Heading F1J.  A gas turbine by-pass type jet engine is provided with a structure which is formed with two intercalated sets of angularly spaced apart radially extending exhaust gas and by-pass air conduits all of whose downstream ends communicate with the interior of the engine jet pipe, the upstream ends of the exhaust gas and by-pass air conduits being respectively arranged to receive the engine exhaust gases and the by-pass air, there being means for effecting combustion of fuel in the exhaust gas conduits. Fuel injection means are provided for injecting fuel into the by-pass air prior to the latter mixing with the exhaust gases in the jet pipe. In the embodiment shown, the engine jet pipe is indicated at 16 and a centre-body at 22. The low-pressure turbine is indicated at 15 and the by-pass air passage at 30. A series of radiallyextending hollow struts 23 extends across the annular passage downstream of the turbine, the turbine exhaust gases flowing through the passages between the struts and a series of concentric downstream-facing part-annular flame-stabilizing members 36 is disposed in the passages 24 between each adjacent pair of struts. The by-pass air flows from the passage 30 into the hollow struts through the open radially outer ends thereof and discharges from the open downstream ends thereof. A series of curved guide members 32 are disposed within the struts 23 and at the downstream end of the by-pass air passage to guide the by-pass air smoothly from the by-pass passage to the jet pipe. A series of radially-extending pipes 34 extend from the manifold 33 to supply fuel into the by-pass air conduits and the exhaust gas conduits. An inner casing 40 is disposed within the jet pipe, a portion of the by-pass air flow flowing in the annular space 21 therebetween, for cooling purposes. The by-pass air passes from the annular space 21 into the interior of the casing 40 through openings 41.
Patent GB-1424286-A (GB)
Title: Shaft joint
IPC: F16D3/205
Filed: 1973-10-19
Abstract: 1424286 Universal joints GELENKWELLENBAU GmbH 19 Oct 1973 [20 Oct 1972] 48856/73 Heading F2U A universal joint comprises a sleeve 12 with a pair of axial grooves 11 with side walls 14 parallel to the sleeve axis, and engaged by rollers 8 each with a part-spherical end face 10 and mounted on one end of a diametral pin 4, the end face 10 engaging an insert 16 (e.g. of plastics) in the respective groove 11, the mating face of the insert comprising a part-cylindrical portion 24 between two part-spherical end portions 24<SP>1</SP> of matching radius of curvature to the faces 10. Each roller 8 may be biased radially outwardly by a dished spring (30), Fig. 3 (not shown), loading the ends of bearing rollers (6). The sleeve 12 may have a second pair of axial grooves 90 degrees out of phase with the grooves 11, for use, after suitable re-assembly, when the grooves 11 become worn.
Patent GB-1105870-A (GB)
Title: Manufacture of silicon carbide ribbons
IPC: C23C16/01
Filed: 1966-11-01
Abstract: <PICT:1105870/C1/1> Silicon carbide ribbon is made by heating a portion of a belt of a material having a coefficient of thermal expansion different from that of the carbide to a temperature of at least 1150 DEG  C., depositing a layer of the carbide equal in thickness to the desired thickness of the ribbon to be formed on the heated portion of the belt by pyrolytic decomposition of a reactant gas mixture which contains carbon and silicon atoms in a ratio of at least 1.75:1 and cooling this portion so that the carbide separates off due to the difference in the coefficients of thermal expansion. The reaction gas mixture enters the apparatus (Fig. 1) at inlet 21 thus forming a carbide film on the moving belt 13.  The belt is heated by a heating element 16 and cooled on leaving the deposition chamber 14, optionally with the aid of the cooling means 31.  The preferred substances used in the reaction gas mixture include dimethyldichlorosilane, trimethylmonochlorosilane, propyltrichlorosilane, mixtures thereof and mixtures including monomethyltrichlorosilane, using preferably hydrogen as a carrier gas.