baber/WOPTO huggingface dataset:
Patent GB-1111928-A (GB)
Title: A process for the production of foamed polypropylene,and articles produced therefrom
IPC: C08L23/02
Filed: 1966-11-14
Abstract: Foamed polypropylene is prepared by feeding polypropylene and a nucleating agent containing a CO2-liberating component and an acid to the transport zone of an extruder, injecting and mixing a liquid organic foaming agent into the plastic mass in the extruder and extruding the mixture with formation of foam the pressure in the extruder at the point where the foaming agent is injected being at least 100% higher than the pressure at the end of the transport zone, i.e. at the point where the flow passage in the extruder is first restricted.  The nucleating agent is preferably made up of 0.5% by weight of the feed of sodium bicarbonate and 0.4% citric acid.  The foaming agent is preferably isopentane or butane:  and the extrusion temperature is preferably close to the melting point of the polymer. A cigarette filter may be made of the foamed polypropylene.ALSO:Cigarette filters are made from foamed polypropylene by cutting extruded strands of the foam into short lengths.  The foam has a continuous or substantially closed skin and a low resistance to passage of gases in the longitudinal direction, and the volume of open cells in the foam should be at least 60% of the total filter volume the density being between 10 and 50 gms per litre.
Patent GB-1499930-A (GB)
Title: Device for changing the profile of a thin-walled metal pipe
IPC: B21C37/15
Filed: 1975-12-12
Abstract: 1499930 Making tubes; tube expanding DSO MONTAJI 12 Dec 1975 [19 Dec 1974] 51128/75 Headings B3A and B3J The profile of a metal pipe, e.g. a ventilator or a casing for an elevator, electric cable &c., is changed by passing a tool having a graduallychanging cross-section along the bore of the pipe. Helically seamed pipes may be changed from circular to rectangular or oval cross-section by a tool preferably having replaceable sections 1, 2, 3 the profile of which changes from circular at the end 3 mounted on a helical-tube seaming- machine to the end 1 without change of peripheral length at any cross-section.
Patent GB-1031000-A (GB)
Title: Improvements in thermostatic controlling devices
Inventor: BRUYNE NORMAN ADRIAN DE
IPC: G05D23/275
Filed: 1963-12-30
Abstract: 1,031,000. Fluid-pressure servomotor systems. TECHNE (CAMBRIDGE) Ltd. Dec.30, 1964 [Dec. 30,1963], No. 51225/63. Heading G3P. [Also in Division H2] A thermostatic controlling device for attachment to a liquid container to maintain the liquid temperature at a predetermined value comprises, an immersion heater 3 connectable to a power supply 4 via a micro-switch 5 a helical bi-metallic temperature-responsive element 6 connected at its upper end to a tube 7 and at its lower end to a shaft passing up through the tube and carrying an indicator arm 31, and a motor 9 driving, via shaft 10, an impeller 12, a pump 14 and a stirrer 11. A flapper 19 and a nozzle 18 (Fig. 1, not shown) are rotatable jointly about tube 7 by a knob 34 to select the controlled temperature, the nozzle communicating with a tube 17 passing through a baffle 30 and terminating adjacent impeller 12. A branch 20 of tube 17 communicates with a bellows chamber 25, the bellows being connected to a weighted lever 26 having a projection 28 cooperating with the lever 29 of the micro-switch. In operation, the flapper and nozzle are rotated to a position corresponding to the controlled temperature as indicated by scale 32, the nozzle being normally closed by the flapper. The partial vacuum created in tube 17 by the impeller 12 causes the bellows to lift lever 26 to allow the micro-switch to close. Increasing liquid temperature causes indicator arm 31 to rotate until a projection 31a thereon abuts and moves the flapper away from the nozzle. This breaks the vacuum in the bellows and allows lever 26 to open the micro-switch. The pump 14 serves to circulate the liquid to external apparatus. The device may include a pulsating device as disclosed in Specification 975, 842.
Patent GB-1082445-A (GB)
Title: Tropane alkaloid derivatives
IPC: C07D451/10
Filed: 1965-12-02
Abstract: Novel tropane alkaloid derivatives of the formula Tr+-A-SO3-, where Tr is the residue of a tropane alkaloid joined to A via the nitrogen atom of the tropane nucleus, said nitrogen atom being quaternary, and A is alkylene of at least 3 carbon atoms, are prepared by reacting a tropane alkaloid containing a tertiary nitrogen atom with the required aliphatic sultone, preferably in equimolecular proportions and in acetone.  Many alkaloids are specified and examples are given of scopolamine and atropine derivatives.  Pharmaceutical compositions having spasmolytic properties and which may be administered orally, or parenterally contain as the active ingredient a compound of the general formula above together with a pharmaceutically acceptable carrier.
Patent GB-1223579-A (GB)
Title: Improvements in devices for arresting the flight of a ball or the like
Inventor: DENTON JOHN MICHAEL
IPC: A63B63/00
Filed: 1968-10-30
Abstract: 1,223,579. Ball arresting device. J. DENTON Ltd. 24 Oct., 1969 [30 Oct., 1968], No. 51438/68. Heading A6D. A ball or the like flight arresting device comprises a portal frame having a pair of swing arms each having an upper end pivoted to a side member of the frame, and a flexible net or sheet having an upper edge connected to the transverse frame member and a part of its side edges connected to the adjacent swing arm. Several pairs of swing arms may be used.
Patent GB-1394663-A (GB)
Title: Stable platform system
IPC: G01C21/18
Filed: 1966-11-18
Abstract: 1394663 Gyroscopic apparatus U S A NAVY SECRETARY OF 18 Nov 1966 51873/66 Heading G1C A stable reference apparatus positioned with respect to the local vertical in an inertial navigation guidance system using correlated velocity guidance comprises a gyro-stabilized platform having positioned thereon a triad of accelerometers oriented to have their sensing axes each along a different axis of a three-axis mutually perpendicular co-ordinate system, one of the accelerometers having its input or sensitive axis in the direction of the average correlated velocity vector, and gimbaling means operatively attached to rotate the platform about the three axes of the coordinate system. In such an apparatus, the platform 11 is supported by shafts 12, 13 along its vertical axis and carries three single degree-offreedom accelerometers: the SR (slant-range) accelerometer 14, the SV (slant-vertical) accelerometer 15, and the J accelerometer 16. It also carries the inertial reference integrating gyros (IRIG's). Only one of the gyros, the J(IRIG) 17, is shown in Fig. 4. A middle gimbal 19 is supported on bearing surfaces where it intersects the shafts 12, 13, and it has shafts 21, 22 displaced 90 degrees from the shafts 12, 13 and passing through an outer gimbal 23 on bearing surfaces. The outer gimbal 23 is supported by shafts 24, 25 rotatably attached to a missile or vehicle body (not shown). In order to rotate the platform and gimbals about one another and to have indication of the angular difference between the platform, the middle gimbal and the outer gimbal, there are fastened to these components torque motors 27, 29 and 32, respectively, and resolvers 28, 31 and 33, respectively. In operation, the platform 11, in conjunction with the middle gimbal 19 and outer gimbal 23, operates to hold the accelerometers in their respective reference co-ordinates, regardless of the external movements of the vehicle to which it is fastened. As the platform is disturbed, the respective IRIG's generate signals to operate the respective torque motors to bring the platform back to its original orientation. The accelerometers, on the other hand, which indicate the vehicle's velocity at some fixed time after leaving a predetermined point, are used primarily in the navigation process.
Patent GB-1078479-A (GB)
Title: Process for separating mixtures of cycloaliphatic fluorine compounds
IPC: C07C23/10
Filed: 1965-12-09
Abstract: Mixtures of cycloaliphatic fluoro compounds are separated by subjecting these mixtures, together with an inert water-soluble organic solvent, to an azeotropic distillation and isolating the fluoro compounds from the individual distillate fractions.  The starting mixtures may be obtained by fluorinating benzene to give a mixture of dodecafluorocyclohexane and partially fluorinated benzenes, a mixture obtained by treating the mixture obtained by fluorinating benzene with alkali metal hydroxide solution to give a mixture of fluorocyclohexenes; and mixtures obtained by fluorinating benzene, toluene, xylenes, cumene, pseudocumene, mesitylene or other alkyl benzenes.  Suitable solvents are, for example, acetone, dioxan and ethyl alcohol.  It is advantageous to add to each distillate fraction sufficient water to enable the organic solvent to dissolve in it.
Patent GB-1412317-A (GB)
Title: Valve
IPC: F16K3/02
Filed: 1973-11-12
Abstract: 1412317 Valves EVERLASTING VALVE  CO 12 Nov 1973 52508/73 Heading F2V A gate valve has a closure disc 66 co-operating with resiliently biased annular seating rings 38, 40 and controlled by a lever 22 mounted on a spindle 24 carrying a crank 26 pivotally connected to an extension of the closure disc such that during closing the latter moves both transversely and circumferentially relative to seating rings 38, 40. As shown closure disc 66 is floatingly mounted in an aperture 64 in carrier ring 62 and has ratchet teeth 74 which only engage a tooth 76 on ring 62 during closing movement. Thus circumferential movement of disc 66 takes place during closing but not during opening. However, in a modification (Figs. 2, 3, not shown) disc 66 does not float within a carrier ring and such circumferential movement occurs also during opening. The resilient bias of seating rings 38, 40 is provided by compressed braided packing 46 which can bulge out through annular slits 48.
Patent GB-1389712-A (GB)
Title: Production of chemical products in high yield
IPC: C05B1/10
Filed: 1972-11-14
Abstract: 1389712 Production of solid chemical compounds PROREA 14 Nov 1972 [15 Nov 1971] 52636/72 Heading C1A A method for the manufacture of a solid chemical compound in which reactants which produce said compound are simultaneously introduced and stirred in stoichiometric quantities in a mixing device, a quantity of the compound being manufactured beforehand and in the form of a powder is introduced into the mixing device, the compound is set in motion and the reactants, including one reactant in the liquid phase, are continuously introduced to the mixing device at a rate such that there is obtained a paste mass of uniform composition containing the compound manufactured beforehand and such that when the compound resulting from the reaction which thus takes place is withdrawn as it is manufactured and when it has achieved a particle size range and distribution substantially equal to that of the compound manufactured beforehand, a quantity of the compound substantially equal to the quantity initially introduced always remains in the mixing device, the input rate of the liquid reactant being such that the compound contained in the mixing device remains permanently in solid phase. Exemplified reactions are: (1) Ca 3 (PO 4 ) 2 +H 2 SO 4  # Ca(H 2 PO 4 ) 2  (simple superphosphate). (2) H 3 PO 4 +Ca(OH) 2  # CaHPO 4 .2H 2 O (bicalcium phosphate) which may be dried in suspension in hot air. (3) H 3 PO 4 +NH 3 (g) # NH 4 H 2 PO 4  Grain size of solid reactant may be same as that of product. The mixer may be heated or cooled.
Patent GB-1519810-A (GB)
Title: Yarn delivery apparatus for textile machines
IPC: D04B15/48
Filed: 1975-12-23
Abstract: 1519810 Knitting machines G MEMMINGER [trading as GUSTAV MEMMINGER VERFAHRENSTECHNIK FUR DIE MASCHENINDUSTRIE] 23 Dec 1975 [28 Dec 1974] 52733/75 Heading D1C In a yarn feed for textile machines yarn is wound at one end of a rotatable drum to form a store and is taken off from the other end, the drum surface comprising a series of elongate portions 2 separated by gaps into which engage projections 27 on a wheel 27 rotatable about an axis inclined to that of the drum which projections engage newly wound convolutions and push them along. When the storage windings reach their maximum length, rotation of the drum stops and does not start again until the length drops to a predetermined minimum. The drum may comprise a series of rods 2 or may be a solid body either with a corrugated surface or with slits or grooves in it. The yarn is pulled off between a braking ring 22 and an edge 21 of the drum through a guide sensor 25 of a yarn breakage detector and a guide 24 as well as over a rod 26 if it is desired to fix the take off point.
Patent GB-1119286-A (GB)
Title: Rigidizing porous or foam materials
IPC: C08J9/42
Filed: 1966-11-25
Abstract: Flexible materials having a porous or interconnected cellular structure are rigidized by impregnating the material with a liquid polymerizable composition and arranging a mass of capsules containing a polymerization inducing agent in proximity thereto, and then rupturing the capsules (e.g. by pressure or heating) to release the polymerization inducing agent so that it reacts with the polymerizable composition to cause polymerization and setting thereof. The flexible material may be cloth, e.g. of cotton or nylon, glass cloth, sponges, reinforced cellulose, foam rubber, polyurethane foams or polyvinyl chloride foams.  The polymerizable material may be an ethylenically unsaturated monomer and, in particular, one containing two ethylenic bonds, e.g. tetramethylene diacrylate, ethylene glycol dimethacrylate and tetraethylene glycol dimethacrylate.  Agents for polymerizing such monomers include, for example, benzoyl peroxide, benzoin methyl ether and cumene hydroperoxide, which may be used in conjunction with an activator such as dimethyl- or diethyl-aniline.  The polymerizable compositions may include other components, e.g. fillers such as silica and bentonite clays, and polymerization inhibitors (to prevent premature polymerization) such as hydroquinone, 1,1 - diphenyl - 2 - picrylhydrazine and phenothiazine.  In an example, polyurethane foam is treated with a composition comprising tetraethylene glycol dimethacrylate, a pyrogenic colloidal silica and benzoyl peroxide; capsules containing dimethylaniline and diethylaniline are positioned on the back of the foam, and ruptured by passing an electric current through a Nichrome (Trade Mark) heating strip which is brought into contact with the capsules.  Rigidization is completed in 3 minutes.
Patent GB-1127700-A (GB)
Title: Bagasse panel
IPC: C08L97/02
Filed: 1966-11-25
Abstract: 1,127,700. Forms of wood. S. A. VERKOR. 25 Nov., 1966 [28 Sept., 1966], No. 52789/66. Heading B5L. [Also in Division C3] A bagasse panel is made by (a) preparing dried bagasse in which the fibres and the parenchymatous tissue are retained in association with each other, (b) fragmenting the dried bagasse into tablet-like particles, (c) adding a synthetic resinous bonding compound with a hardening agent, (d) shaping the mixture into a panel, and (e) applying heat to set. The bagasse may be artificially dried as soon as it leaves the sugar mills, optionally after presorting to free it of deteriorated cells and detached fibrillµ. The residual moisture after drying may be 15-20%. The dried bagasse may be placed in a hammer crusher to form particles of which at least 50% have area 20-40 mm.<SP>2</SP>, and whose length is 100-200 x the thickness. The particles may be bonded with 8 wt. per cent of urea-formol resin of concentration 50 wt. per cent, the humidity of the particles being then adjusted to 14%. A panel of 1À22 x 1À22 m. may then be formed and pressed at 140‹ C., cooled, sandpapered on both sides, and conditioned at a temperature of 20‹ C. at relative humidity 65%. The panels may be 12-20 mm. thick.
Patent GB-1170280-A (GB)
Title: Improvements in or relating to Pharmacologically-Active Amino-Acid Derivatives.
IPC: C07C309/47
Filed: 1966-11-30
Abstract: 1,170,280. N-Naphthylamino acid derivatives. PHILIPS' GLOEILAMPENFABRIEKEN N.V. 30 Nov., 1966 [30 Nov., 1965], No. 53558/66. Heading C2C. Novel compounds of general Formula I in which R 1  represents hydrogen or a metal atom, for example, sodium or potassium, or an alkyl group, R 2  represents a branched or straight-chain alkylene group comprising altogether from 3 to 7 carbon atoms, not being a substituted methylene group, and R 3  represents hydrogen, a halogen atom, for example, chlorine or bromine, or an alkoxy group having 1 to 4 carbon atoms or acid-addition salts of the said compounds formed with pharmaceuticallyacceptable acids are prepared by various methods (a) by reacting a naphthylamine of Formula II with a compound wherein R<SP>1</SP> 2  is an alkenyl group; (b) a compound of Formula II is reacted with a compound O = R<SP>11</SP> 2 -COOR<SP>1</SP> followed by catalytic reduction of the intermediately formed Schiffs base, R<SP>11</SP> 2  is a hydrocarbon residue convertible to R 2  during the reduction; (c) a nitrile is hydrolyzed to give the above compounds wherein R 1  is H and the carboxyl group may be then esterified to obtain a compound of Formula I in which R 1  represents an alkyl group; (d) an amine of Formula II is reacted with (e) an amine of Formula II is reacted with a lactone and the resulting free acid is optionally esterified; (f) a halogen compound of is reacted with H 2 N-R 2 -COOR 1  except where R 3  in Formula I is halogen; in all cases the reaction may be followed by salt formation or interconversion. Pharmaceutical compositions having sedative action and being in conventional forms for oral, rectal or parenteral administration comprise an above novel compound or a salt thereof and a carrier therefor.
Patent GB-542460-A (GB)
Abstract: 542,460. Pressing plungers. WEAKLEY, F. J. Nov. 7, 1940, No. 16230. [Class 87 (ii)] [Also in Group XXII] Tools or dies are secured in press rams, for example of metal stamping, punching and like presses, by means of faceted stems inserted into recesses or holes in the rams and secured by forcing one of the facets against a wall of the recesses &c. by a wedge or key &c. The die 1 is secured by a key 5, Fig. 1, in a slot in an intermediate member 4 having a second slot in which is secured a shank 8, Fig. 3, by a key 16. The shank has spaced octagonal parts 11, 12 with an intermediate pawl 13 of reduced diameter which may also be octagonal. The shank is adjustably mounted in a slot 10, in the ram, of width approximately equal to the distance between the opposed faces, and secured by a key 16 engaging a slot 15 and the reduced part 13. In a modification, the shank is fixed directly in the die by a tapered shank and set screw. Instead of the slot 10 the octagonal shank may be received in an octagonal hole in the press ram. The sides of the octagon may be concave and other faceted forms may be employed. Existing machines may be adapted to receive the octagonal shank by screwing in an externally threaded nut, with an octagonal hole, and pegging it to prevent movement.
Patent GB-1363697-A (GB)
Title: Mechanical clamping device more especially a vice
IPC: F16H25/18
Filed: 1971-11-23
Abstract: 1363697 Machine vices F ARNOLD 23 Nov 1971 [10 Dec 1970] 54444/71 Heading B3B In a mechanical clamping device such as a machine vice having a base portion 1 with a fixed jaw 2 and a displaceable jaw 10 carried on a slide 8, the slide is actuated by a hollow threaded spindle 5 which has a pressure amplifying mechanism. This mechanism is formed in an extension concentric with the screw spindle 5 and includes a push-rod 11 coaxial with the spindle 5 and engaging the jaw region 10 of the slide 8 and which is actuated by a tapered pressure bolt 26 by way of a driving spindle 13 through a clutch mechanism 21, 22, and which displaces angularly spaced concentric toggle levers 31 to apply additional pressure to the jaws of the vice, each toggle lever including three balls, a centre ball 28 and two end balls 29 with two arms 31 therebetween. In operation a hand lever 18 is rotated wihich rotates the spindle 5 and the amplifying mechanism 5a, 5b and 16 until the workpiece 20 is firmly gripped between the vice jaws 2 and 10. Further rotation of the handle 18 causes rotation of the driving spindle 13, disconnection of the clutch members 21, 22 and axial displacement of the driving spindle to abut the pressure bolt 26 which is subsequently displaced axially whereby its tapered end radially displaces the centre balls 28 of the toggle linkage 31. Since one end of the linkage 31 seats against a fixed member 32 and the other against a seating flange on the push-rod 11 the rod is displaced coaxially of the screw 5 to increase the load of the jaws on the workpiece 20.
Patent GB-1514930-A (GB)
Title: Apparatus for treating hair
IPC: A45D7/00
Filed: 1975-09-11
Abstract: 1514930 Hair treatment M MARRAFFA and R BRUNAS 11 Sept 1975 [19 Dec 1974] 55058/74 Heading A4V Hair is treated with, for example, a setting lotion, using an applicator 16, the liquid being collected from the hair using a tray section 14. As described, the applicator 16 has outlet holes (30) at its distal end and the liquid is ejected through the holes on to the hair from a plastics bottle 12 by squeezing the bottle. The applicator 16 and the tray section 14 are pivotted together at 18 and screwed to the top of the bottle so that the device may be used in one hand. One-way valves (34, 36) control the flow of liquid ejected from the bottle and returning to the bottle from the tray section.
Patent GB-1207661-A (GB)
Title: Anaesthetist's lung ventilator
Inventor: CARDEN EDWARD
IPC: A61M16/20
Filed: 1966-10-27
Abstract: 1,207,661. Resuscitators. E. GARDEN. 11 Dec., 1967 [27 Oct., 1966; 9 Dec., 1966], Nos. 48218/66 and 55131/66. Heading A5T. A lung ventilator comprises a body 11 having a gas inlet 13 for connection to anaesthetic equipment, a breathing connection 15 to the patient and an outlet 12 to atmosphere, a valve member 37 magnetically biassed to a rest position where it closes the gas inlet and opens the breathing connection to the outlet and which in use is displaced from its rest position by build-up of pressure at the inlet to open the breathing connection to the outlet, the valve member returning to its rest position for expiration as pressure at the inlet dissipates. A spool-type valve member 37 comprises a hub 38 supporting discs 39, 40 which close against one of the seats formed by internal shoulders 20, 21 in the outlet 12 and inlet 13, respectively. A magnet 42 in the hub is in attracting relationship with a magnet 27 supported by an axially adjustable web 26 in the inlet to bias the valve to its rest position. The magnet 42 is in repelling relationship with a magnet 23 arranged axially in the outlet for urging the valve into its rest position when the outlet is wholly or partially closed. The web 26 and the magnet 27 are adjusted by a screw 32 which abuts an inclined surface 34 on the web. The magnet 23 is adjustably threaded on a web 22 in the outlet. In an alternative construction, the valve body has a pressure relief valve (90) Figure 2 not shown, the valve seat (62) in the outlet is adjustable and the magnet (68) in the inlet is carried by a plug (67) which is urged by the spool valve (85) by a spring (70) and may be used to press the spool valve (85) against the seat (62) to provide permanent communication between the inlet and the patient. Soft iron rod may be used instead of one of the magnets in each attracting pair.