baber/WOPTO huggingface dataset:
Patent GB-1096945-A (GB)
Title: Random ethylene/acrylic acid interpolymers and process for their production
IPC: C08F10/00
Filed: 1964-12-16
Abstract: Random interpolymers of ethylene and acrylic acid containing 1 to 40% by weight of polymerized acrylic acid and having a melt index of 0.1 to 2000 dgm./min., a glass transition temperature of 20 to 27 DEG  C. and an I-R absorption spectrum lacking absorption bands at 7.9, 8.9, 9.1, 10.9 and 12.6 microns are prepared by continuously feeding ethylene and, based on said ethylene, 0.1 to 5.0 mole per cent acrylic acid and a peroxide polymerization catalyst through sparger tubes at several points along the length of a reactor into a polymerization zone of said reactor maintained within 10 DEG  C. of a selected temperature from 170 DEG  to 250 DEG  C. and within 500 p.s.i. of a selected pressure from 12,000 to 30,000 p.s.i., the temperature of said feed being from 10 DEG  to 150 DEG  C. and at least 60 DEG  C. below the selected temperature in said polymerization zone, and continuously withdrawing the polymerization product from said polymerization zone at a rate approximately equal to the rate of feed so that the average residence time in said polymerization zone is from 0.5 to 5 minutes.  Catalysts specified are di-t-butyl, di-alpha-cumyl and dibenzoyl peroxides.  An inert diluent may be used, if desired, e.g. iso-octane or benzene. The interpolymers are useful for coating paper and as adhesives. Comparative preparations are illustrated wherein the ethylene and acrylic acid are polymerized (i) by a batch process in benzene using di-t-butyl peroxide catalyst and (ii) continuously in the presence of iso-octane. using isopropyl-peroxydicarbonate as catalyst.ALSO:Paper is coated with a random ethylene-acrylic acid interpolymer containing from 1 to 40 weight percent polymerised acrylic acid and having a melt index of from 0.1 to 2000 dgm/min., a glass transition temperature of from 20 to 27 DEG C and an I - R absorption spectrum characterised by the substantial absence of absorption bands at 7.9, 8.9, 9.1, 10.9 and 12.6 microns, the interpolymer being prepared by a particular, controlled, continuous polymerisation process (see Division C3).  The coating renders the paper oil-resistant.
Patent GB-1416606-A (GB)
Title: Determination of oxygen content of molten metal
IPC: G01N27/416
Filed: 1973-11-07
Abstract: 1416606 Oxygen electrode FORD MOTOR CO Ltd 7 Nov 1973 [6 Dec 1972] 51674/73 Heading GIN  The oxygen content of a molten metal is determined using a solid electrolyte and an oxygen reference comprising a carbide of chromium, niobium, tantalum or titanium. The carbide has a higher melting point than the major constituent of the metal. The electroyte may be thoria, calcia stabilized zirconia or beryllia stabilized calcia stabilized zirconia and the metal is preferably steel. Connection to a high impedance voltmeter may be made by a molybdenum wire in the carbide (which contacts the electrolyte) and a similar wire in the molten metal.
Patent GB-1166628-A (GB)
Title: Compositions for the Care of the Oral Cavity
Inventor: WATSON CHARLES ANDREW
IPC: A61Q11/00
Filed: 1965-12-07
Abstract: 1,166,628. Flavouring compositions. UNILEVER Ltd. 6 Dec., 1966 [7 Dec., 1965], No. 51753/65. Heading A5B. '[Also in Division C3] Compositions for care of the oral cavity comprise 'particles of a water insoluble plastics material with a size of less than 50 microns, which contain absorbed flavouring material. Plastics materials may be polyvinyl chloride, polyethylene, polypropylene, polymethyl methacrylate, or a co-polymer of polyvinyl chloride and polyvinyl alcohol. Flavouring materials may be menthol, peppermint, spearmint (carvone), wintergreen, or anethole, or mixtures thereof. The compositions may be a dentifrice in the form of a liquid, paste, powder, tablets or a solid block, or may constitute a mouthwash; other ingredients conventional for such forms "may be present. The compositions are prepared by contacting 'particles of plastics material with .the flavouring agent, if necessary together with a solvent or another flavouring agent capable of being absorbed by the plastics material (e.g. propylene, glycol, glycerine, cineole or spearmint oil), optionally separating the particles from excess flavouring agent and solvent and incorporating them in an oral. composition. The process is preferably effected at elevated, temperature.
Patent GB-1224609-A (GB)
Title: Edge-rolling stand for steel slabs or the like
Inventor: QUALEY FRANCIS KENNETH
IPC: B21B31/12
Filed: 1969-03-20
Abstract: 1,224,609. Rolling. UNITED STATES STEEL CORP. 20 March, 1969 [20 March, 1968] No. 52299/70. Addition to 1,224,608. Heading B3M. The description relates to the stand structure of Specification 1,224,608 and the claims relate to such a stand structure with exchangeable edge rolls each having upper and lower passes selectively movable to a position at the side of the pass line.
Patent GB-1415881-A (GB)
Title: Alpha-cyanamino-acetamido-cephalosporins and penicillins
IPC: A23K20/195
Filed: 1972-11-14
Abstract: 1415881 α-Cyanaminopenicillins and cephalosporins E R SQUIBB & SONS Inc 14 Nov 1972 [19 Nov 1971 (2)] 52604/72 Heading C2C [Also in Division C3] Novel (α - cyanamino)acetamido - penicillins and cephalosporins having the Formula (I) and salts thereof, wherein A is a 6-aminopenicillanic acid moiety of Formula (II) or a 7-aminocephalosporanic acid moiety of Formula (III) wherein R 1  is hydrogen, C 1 -C 8  alkyl, C 1 -C 8  alkenyl, saturated or unsaturated C 3 -C 7  cycloalkyl, cycloalkyl-alkyl, adamantyl, aralkyl, aryl or a 5- or 6-membered heterocyclic group containing up to two hetero atoms selected from S; O and N and which may be substituted by halo, C 1 -C 8  alkyl, C 1 -C 8  alkoxy or phenyl and may be joined to the molecule by an alkylene group; R is hydrogen, C 1 -C 8  alkyl, aralkyl, tri - (C 1 -C 8  alkyl)silyl, a salt-forming ion or a group of formula -CH 2 -O-CO-R 2  in which R 2  is C 1 -C 8  alkyl, aryl or aralkyl; and X is hydrogen, hydroxy, C 1 -C 8  alkanoyloxy, aroyloxy, aralkanoyloxy, the radical of a nitrogenous base, a quaternary ammonium radical, or X and R together represent a chemical bond linking the associated carbon and oxygen to form a lactone ring, and wherein the cycloalkyl and aryl rings may be simply substituted (e.g. by one to three halogen, alkyl or alkoxy groups) are prepared by (i) reacting a corresponding (α-amino)acetamido-penicillin or' cephalosporin with dicyanogen or a cyanogen halide, (ii) reacting a corresponding (α-amino) acetamido-penicillin or cephalosporin with an N-cyano-2-pyridone, or (iii) reacting a corresponding (α-halo)acetamido-penicillin or cephalosporin with cyanamide or an alkali metal cyanamide. Reaction (i) is preferably carried out at low temperature in a reaction-inert solvent in the presence of an acid-binding agent, using cyanogen bromide or chloride as the reactant. The N-cyano-2-pyridone used in reaction (ii) isprepared by reacting 2-acetoacetamidopyridine with sodium nitrite at acidic pH, or by reacting the sodium salt of 2(1H)-pyridone with cyanogen bromide. The preferred conditions' in reaction (iii) consist of reacting sodium cyanamide with the α-chloro or α-bromo penicillin or cephalosporin. The compounds (I) may be used in disinfecting compositions together with an inert dry or aqueous carrier, or may be used in pharmaceutical compositions with a pharmaceutically acceptable vehicle or diluent.
Patent GB-1326310-A (GB)
Title: Rail traction vehicles
Inventor: LOOSLI H E
IPC: B61C15/04
Filed: 1971-11-12
Abstract: 1326310 Railway vehicle undercarriages SCHWEIZERISCHE LOKOMOTIV - UND MASCHINENFABRIK 12 Nov 1971 [16 Nov 1970] 52733/71 Heading B7L A rail locomotive comprises a body 1 supported, at three or more support zones spaced lengthwise of the locomotive, by springs which are non-variable-rate springs 5 at one or more support zones and are adjustable springs such as air springs 6 at one or more other support zones, the adjustable springs having control means, arranged to adjust their spring force in dependence upon the tractive effort exerted by the locomotive, such as a transducer 13 on draw hook 12 connected to a pressure regulator 10 in the compressed air line 11 supplying the springs 6. When there are three support zones only, the springs at the outer zones may be non- variable-rate springs 5, as shown, or may be adjustable (air) springs (20), as in Fig. 2 (not shown), in which latter case there may be an independent pressure regulator (23 or 24) for the springs at each outer zone. The locomotive may be supported by bogies I, II and III or by individual axles at the support zones. The control means are preferably such that, when the loading at more than one support zone is reduced, it is reduced to the same extent at all these zones. The air line 11 may include a reser. voir (30), Fig. 3 (not shown), so that the spring force of spring 6 is substantially unaltered when the gradient of the track upon which the locomotive runs is varied.
Patent GB-528197-A (GB)
Abstract: 528,197. Fusible cut-outs. WEST & CO., Ltd., A., and BABLER, E. B. April 26, 1939, No. 12513. [Class 38 (i)] A circuit interrupter of the type having a thin film of metal mounted upon an insulating backing as described in Specification 499,816, is provided with a gap 10 in the straight path 1 of the conducting film, the circuit across the gap being completed by a narrow laterally displaced bridge 11, Fig. 4, of the conducting film or by a resistance 16, Fig. 8, or a condenser mounted inside or outside the fuse housing 3. On an increase of current the voltage drop across the gap increases until arcing occurs causing destruction of the film at a point where the insulating backing is cool and therefore non- conductive. The current may be further confined to the straight path by gaps 12 that leave narrow portions 13 that are rapidly destroyed. The destruction of the film is accelerated by condenser effect between the portions 9 of the film and this may be increased by elongating and subdividing the portions 9 to form tortuous adjacent lengths of film between the points 11, 13.
Patent GB-1369486-A (GB)
Title: Process and additives for the melting of metals under electroconducti ve slag
IPC: C22B9/18
Filed: 1971-11-15
Abstract: 1369486 Producing alloys ACIERIES REUNIES DE BURBACH-EICH-DUDELANGE SA 15 Nov 1971 [14 Dec 1970] 52992/71 Heading C7D A process for the discontinuous or continuous melting of metal or alloy under an electroconductive slag in which solid alloying ingredients or slag-forming components are added during operation is characterized by the incorporation in the additive composition of at least one reactive metal element which supplies heat in being oxidized, the product of the oxidation corresponding to one of the constituents of the electroslag employed. Thus the additives are rapidly melted locally and prevent heterogeneous inclusions or other disturbances. The process is particularly applicable to the addition of titanium, molybdenum, vanadium, tungsten, manganese, niobium, tantalum, chromium, cobalt and/or nickel to iron; the reactive metal elements incorporated include lanthanum, calcium, cerium, barium, titanium, zirconium, aluminium, magnesium and silicon. The alloying components can all be introduced in the metallic state but may include one or more in the form of an oxide in order to supply the oxygen needed for reaction with the reactive elements; alternatively an oxygenated compound can be utilized. The additive mixture may be in the form of granules having a lower density than that of its metal constituents.
Patent GB-1168168-A (GB)
Title: Improvements in and relating to Sewing Machines
Inventor: HOVHANNES KRIKORIAN
IPC: D05B91/14
Filed: 1967-11-23
Abstract: 1,168,168. Roll holders. H. KRIKORIAN. 23 Nov., 1967 [25 Nov., 1966], No. 53378/68. Heading A4G. [Also in Division D1] Means for supporting sewing machine thread bobbins comprise two parallel members, and bobbin-receiving spindles pivotally connected to one of said members, about an axis disposed externally of said one member, for angular movement, limited by stop means, in a vertical plane from a substantially horizontal to a substantially vertical position. As shown, the front wall 1 of a trough is formed with notches 1a which support the free ends of bobbin-carrying pins 3 pivoted on a pin 6 located externally of and carried by the rear wall 2 of the trough. Wall 2 extends into a horizontal flange 5, and notches 2a, formed at the junction of wall 2 and flange 5, have vertical edges 2b which support the pins 3 in the bobbin-receiving position just beyond the vertical. The trough may be either straight or circular, when the trough is pivoted about its own axis.
Patent GB-1419061-A (GB)
Title: Two-chamber syringe
IPC: A61J1/00
Filed: 1972-11-20
Abstract: 1419061 Surgical syringes HOECHST AG 20 Nov 1972 [20 Nov 1971] 53511/72 Heading A5R  A two-chamber syringe comprises a hollow syringe body 1 attached to a solvent container 5 having a slidable piston 6 therein, and a hollow connector 3 attached to. the neck of a medicament container 2, the arrangement being such that relative axial movement of the syringe body and the connector causes a cannula 11 mounted on a support member 10 axially movable in the bore 9 of the syringe body to first pierce a membrane 16 of the connector and subsequently pierce a membrane 13 of the syringe body. As shown the syringe body and the connector are screw-threaded and respectively provided with an annular groove 17 and a raised bead to prevent premature perforation of the membranes. In alternative forms the connector may have a securing ring or be joined to the syringe body by spot welding to prevent premature perforation. The solvent and medicament containers are respectively attached to the syringe body and the connector by the engagement of a bead, e.g. the bead 4, with a flanged rim, e.g. the rim 21. In alternative forms the syringe body or connector is deformed into engagement with a flange of the respective container and may engage a ring beneath the flange. The solvent and medicament containers are each sealed by a rubber stopper, e.g. the stopper 8, and an aluminium cap, e.g. the cap 7, having a central aperture. In use, the connector is screwed onto the syringe body until the cannula, which is retained in the bore 9 by engagement of an annular projection 12 with a groove in the bore, pierces the membrane 16. After a shoulder A of the support member 10 has abutted a shoulder B of the connector, further rotation of the connector causes the cannula to pierce the membrane 13. A metal ring 15 is provided on the lower surface of the end 14 of the support member. Pressure exerted on a piston rod 19 causes the solvent to be conveyed to the medicament container and form a solution which is reconveyed to the solvent container by pulling back the piston 6. Subsequently the connector is removed and a needle 20 stored in the interior of the piston rod is attached to the frusto-conical end 14 of the support member. A finger support 22 is provided on the solvent container. The support member may be provided with longitudinal fins to ensure the cannula pierces the container seals centrally. The membrane of the syringe body may be in the form of a tightly fitting insert.
Patent GB-1407016-A (GB)
Title: Process for removing sulphur dioxide from gases
IPC: B01D53/50
Filed: 1972-11-21
Abstract: 1407016 Removing S02 from gases; sulphur BASIC Inc 21 Nov 1972 [1 Dec 1971] 53769/72 Heading C1A SO 2  is removed from combustion gas streams by (a) scrubbing the stream with an aqueous solution containing an acid soluble metal sulphide, e.g. Na, K, Li, Ca, Sr, Mg, Ba, Fe, Zn or Al sulphide, thereby forming a ppt. containing a metal sulphite, elemental S and optionally a metal sulphate and thiosulphate, (b) withdrawing a portion of the slurry formed, (c) separating the ppt. from the slurry, (d) recycling the resultant solution to the scrubbing step (a), (e) heating the ppt. to reduce the H 2 O content and convert any thiosulphate present to additional sulphite and S, (f) extracting the elemental S from the dried ppt., (g) reducing the ppt. to convert the metal sulphite together with any sulphate to sulphide and then, (h) recycling the metal sulphide to the scrubbing step (a). The gas stream may contain 0À1-3% SO 2 . The slurry in step (a) may have a pH of 2À9-6À0, a temperature of 140-180‹ F., a solids concentration of 0À8-1À2 lb./gal. and be saturated with thiosulphate formed by the SO 2 /sulphide reaction. The pH of the slurry may be maintained by the addition of the corresponding metal oxide, hydroxide or sulphide to the slurry or carbonate to the reduction step (g). Approximately 10% of the slurry may be withdrawn in step (b). Steps (e) and (f) may be combined by heating the CaSO 3 /S containing ppt. to a temperature of 900-1500‹ F. in a N 2  atmosphere in a first fluidized bed reactor 1, the elemental S being separated and condensed at 58 The reduction step (g) may then be carried out by passing the residual CaSO 4 /CaS containing solid to a second fluidized bed reactor 2 containing hot carbon at a temperature of 1520-2100‹ F. Alternatively the heating step (e) may be carried out at a temperature of 215-400‹ F. and then the S removal step (f) carried out using CS 2  or a sulphur still. The reduction step (g) may be carried out in a rotary kiln.
Patent GB-1167769-A (GB)
Title: Electric Incandescent Lamp
IPC: H01K1/28
Filed: 1967-11-27
Abstract: 1,167,769. Incandescent lamps. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 27 Nov., 1967 [30 Nov., 1966], No. 53818/67. Heading H1F. [Also in Division C1] An incandescent lamp has a tubular bulb with a straight base part 1 in which the filament 6 extends and two end parts 2 at right-angles to this through which the lead-in wires 5 extend, the lead wires 5 being sealed in at the free ends of the parts 2 and supported at a region nearer to the filament than the seal by a resilient member 9 within the bulb. The member 9 may be in the form of a few turns of wire 11 tightly surrounding the lead-in wire and a few turns 10 of larger diameter fitting inside the tube. The parts 10 may be held in place by local depressions 12 in the wall of the bulb. The filament may be supported in the base part 1 by discshaped or helical members 8. The lead-in wires may be sealed in the ends of the tubes 2 by bead seals 3, the beads being made of glass having a coefficient of expansion between that of the lead-in wires and that of the bulb. Alternatively, the tube ends may be built up of successive rings of glass of increasing coefficients of expansion.
Patent GB-1058358-A (GB)
Title: Production of copolymers of ethylene and propylene
Inventor: HOSTETLER DONALD EDMUND
IPC: C08F210/00
Filed: 1965-12-20
Abstract: Ethylene/propylene copolymers are made by copolymerizing ethylene and propylene in a weight ratio between 2:98 and 20:80, under sufficient pressure to maintain at least a part of the propylene in the liquid phase, in the presence of hydrogen, an aluminium alkyl compound and a co-crystallized titanium trichloride-aluminium chloride compound as catalyst. The catalyst is described in Specification 850,910.  The copolymer is recovered by known techniques.
Patent GB-1340476-A (GB)
Title: Temperature sensitive device
IPC: H01H37/18
Filed: 1971-12-08
Abstract: 1340476 Temperature responsive actuating elements EBERLE WERKE K G 23 Nov 1972 [8 Dec 1971] 54190/72 Heading G1D [Also in Division H1] In a temperature responsive device comprising a bi-metallic element 1 held in compression in a frame 2 by a spring 3, a setting member 5 is arranged to apply to the bi-metallic element a force transverse to the compressive force at a position which is adjustable longitudinally of the bi-metallic element. As shown, the setting member 5 which may be a screw received in a threaded bore of the frame 2 bears on the element 1 by way of a spring member 6 which is provided with a bead 8 engaging the element 1 and which is movably mounted on the element 1 or on the frame Fig. 2, (not shown). In an alternative embodiment, the setting member which is arranged to bear directly on the element 1 is threaded into a carriage movable on the frame, the frame being provided with a slot through which the setting member extends from the carriage to the bi-metallic element.
Patent GB-1456544-A (GB)
Title: Electrographic method and apparatus
IPC: G03G15/01
Filed: 1973-11-22
Abstract: 1456544 Electrographic imaging CANON KK 22 Nov 1973 [22 Nov 1972 (2)] 54288/73 Heading G2H An electrographic process comprises forming two electrostatic latent images, to be developed in different colours, on an image-bearing member so as to have opposite polarity, the background being of substantially neutral polarity. The imagebearing member may have an electrically insulating layer, a photo-conductive layer and an electrically conductive layer, and the process may comprise the steps of (a) applying a uniform primary charge to the insulating layer (b) before, during or after step (a) exposing the layer to an image to be reproduced. (the image having a black area and another non-white coloured area) (c) uniformly applying a secondary charge of opposite polarity to said primary charge to said surface and (d) reexposing said surface to said image through a filter capable of intercepting said non-white colour. An overall light exposure may follow step (d). The surface may then be developed with a black toner and a toner of said other non-white colour. The two exposures may be conducted simultaneously with their respective charging steps by scanning an original bearing the image with two exposure slits and directing the beams 27 and 28 from these slits through caratrons 6 and 30 on to the surface 1. Subsequent overall light exposure is by means of lamp 7.
Patent GB-1320037-A (GB)
Title: Rotor for a turbogenerator including winding coil support means
IPC: H02K3/51
Filed: 1970-11-16
Abstract: 1320037 Securing coils for dynamo-electric machines ALLMANNA SVENSKA ELEKTRISKA AB 16 Nov 1970 [17 Nov 1969] 54378/70 Heading H2A An arrangement for preventing radial deflection of the rotar end windings 3 of a turbogenerator comprises a retaining ring 2 shrunk at one of its ends on to the rotor body 1 and at its other end on to a support ring 7 mounted on the rotor body, the support ring comprising at least four co-axial metal rings 6. The support ring 7 is rigid for radial forces but yields to axial forces and to bending moments on the shaft 1a. The metal rings 6 are mounted in grooves in sleeves 4, 5, fixed respectively to the retaining ring 2 and rotor body 1 by groove/projection connections 4a, 5a. The metal ring 6 may be separated from one another by yielding layers 8, Fig. 3 (not shown), e.g. of lead, or may be provided with friction reducing surface layers.