baber/WOPTO huggingface dataset:
Patent GB-1058389-A (GB)
Title: Block polymers and their preparation
Inventor: RICHES KENNETH MAURICE
IPC: C08L67/02
Filed: 1964-10-21
Abstract: Block copolymers are prepared by condensing in the presence of a hydrogen halide acceptor a polymer A having two terminal haloformate groups with a polymer B having two terminal hydroxy groups, each of the polymers A and B having a weight average molecular weight of at least 1000 and containing no carbonate linkage; The polymer A is preferably aliphatic and is a polyalkylene glycol, or a polyester bishaloformate; B is a polyether or polyester, preferably an aromatic or cycloaliphatic polyester diol, and may be e.g. a polyester formed from an alkylene bisphenol and an aliphatic, cycloaliphatic or aromatic dicarboxylic acid, but may also be entirely aliphatic, e.g. poly-(neopentyl glycol sebacate).  In one preferred form A is a polyoxyalkylene unit and B is a poly-(bisphenol-aromatic dicarboxylate) unit; in another, both A and B are polyoxyalkylene units, and A may be the bishaloformate of B. A and B should be reacted in substantially chemically equivalent proportions. Suitable hydrogen halide acceptors are alkali metal hydroxides or tertiary amines, e.g. trimethyl-, triethyl-tripropyl-amine, N,N-dimethyl or diethyl-cyclohexylamine N,N-dimethyl or diethyl-aniline, pyridine, picoline and quinoline. A suitable solvent reaction medium is methylene chloride, chloroform, ethylene chloride, chlorobenzene, tetrachloroethane, trichloroethylene, benzene, toluene or xylene. The examples describe the reactions of a bisphenol A-terephthalate polyester diol with bischloroformates of polyethylene, polypropylene and polytetramethylene glycols and of polyethylene glycol bischloroformates with a dimethylolcyclohexane-terephthalate polyester diol and with a polyethylene glycol.
Patent GB-981408-A (GB)
Title: Improvements relating to ion-exchange columns
IPC: B01J47/02
Filed: 1961-11-30
Abstract: <PICT:0981408/C1/1> An ion exchange column comprises four cells 1, 2, 3 and 4 clamped together with a tie-rod 7. Mixed anion and cation cells can thus be regenerated separately.
Patent GB-1193789-A (GB)
Title: Hydrolysis products of Delta<4,20,22>-Bufatrienolides and Process for their Separation
IPC: A61K/
Filed: 1968-09-11
Abstract: 1,193,789. Aglyconic bufapolyenolides. KNOLL A.G. CHEMISCHE FABRIKEN. 11 Sept., 1968 [21 Sept., 1967], No. 43098/68. Heading C2U. The invention comprises (A) the compounds 3α,14# - dihydroxy - 4,20,22 - bufatrienolide (I) 5#,14# - dihydroxy - 3,20,22 - bufatrienolide (II) 3α,14# - dihydroxy - 19 - oxo - 4,20,22 - bufatrienolide (III) 5#,14# - dihydroxy - 19 - oxo - 3,20,22 - bufatrienolide (IV) 3α,14#,19 - trihydroxy - 4,20,22 - bufatrienolide (V) 5#,14#,19 - trihydroxy - 3,20,22 - bufatrienolide (VI), and 19-hydroxyscillandine (VII); and (B) the separation by silica gel chromatography, optionally preceded by selective acetylation, or aglycone mixtures obtained by acid hydrolysis of 3 - glycosido - 14# - hydroxy - 4,20,22 - bufatrienolides. Thus acid hydrolysis of proscillaridin yields scillarenin (VIII), scillaridin (IX) and compounds I and II; 19-oxoproscillaridin yields 19-oxoscillarenin (X), 19-oxoscillaridin (XI) and compounds III and IV; and 19- hydroxyproscillaridin yields 19-hydroxyscillarenin (XII) and compounds V, VI and VII. Reaction with acetic anhydride or acetyl chloride at 20-150‹ C. results in esterification of I, III, VIII and X, monoesterification of VI and VII and diesterification of V and XII, but has no effect on II, IV, IX and XI. Esters may be hydrolysed with acids or bases.
Patent GB-976646-A (GB)
Title: Electron gun for and method of gettering cathode ray tubes
IPC: H01J29/94
Filed: 1961-12-01
Abstract: 976,646. Cathode-ray tubes. RADIO CORPORATION OF AMERICA. Dec. 1, 1961 [Dec. 16, 1960], No. 43132/61. Heading H1D. In a method of gettering an electron tube, e.g. a television display tube, comprising an electron gun having an apertured end electrode 38 disposed between a getter 63 and other parts of the gun, the aperture in electrode 38 is covered by a metal foil 64 which is pierced by electron bombardment after the gettering material has been vaporized. As shown, foil 64 of aluminium, titanium, zirconium, thorium or " Ceralloy " (Registered Trade Mark), is spotwelded to the getter-side of insert 50, but alternatively, a cup-shaped foil may be sandwiched between insert 50 and tubular electrode 38.
Patent GB-1514456-A (GB)
Title: Sewing machine for sewing on pocket blanks
IPC: A41D27/20
Filed: 1975-10-13
Abstract: 1514456 Linkwork cams PFAFF INDUSTRIEMASCHINEN GmbH 13 Oct 1975 [5 Dec 1974] 43279/77 Divided out of 1507360 Heading F2K [Also in Division D1] In a sewing machine of the type disclosed in Specification 1,507,360 the. needle bar 9 is jogged about an axis 11 by an eccentric 18 acting through a linkage 19-37, the linkage being urged by a spring 33 to a straight-stitch position in which axes 26, 29 are aligned and being actuable by a pneumatic cylinder 34 into a zig-zag position with said axes out of alignment.
Patent GB-1519037-A (GB)
Title: Colour crt viewing panels with embedded mask supporting pins
IPC: H01J31/20
Filed: 1975-10-23
Abstract: 1519037 Colour display tubes CORNING GLASS WORKS 23 Oct 1975 [22 Nov 1974] 43556/75 Heading H1D A viewing panel for a colour TV display tube has a plurality of metallic pins embedded therein for supporting a shadow mask, each pin having a central portion 11 with an orifice 12 for receipt of a projecting member of the mask, and flat side portions 13, 14 which have legs 15, 16 at least partially embedded in the panel. The orifice shape may be varied (Fig. 2, not shown). Truncations and recesses in the side portions accommodate the internal surface of fund member 21 (Fig. 4) and sealing glass frit bead 22a. Pin 10 has a thermal expansion coefficient matching the glass of panel 2.
Patent GB-1357388-A (GB)
Title: Jewellery clasps for securing for example necklaces watchbands or  bracelets
IPC: A44C5/20
Filed: 1971-09-20
Abstract: 1357388 Latches; stud and socket fastenings D HOOBER and C FRANKEL 20 Sept 1971 43748/71 Headings E2A and E2B A jewelery clasp comprises a hollow cylindrical member 10 having a cap 20 fitting on a shoulder 19 and a blade spring 24 secured at one end in a groove in the member 10 and at the other end to an apertured catch 16 which is supported thereby in a notch 22 in the cap, a cylindrical member 11 is slidable in the member 10 so that a nose 12 thereon projects into the cap and the catch abuts a groove 15 adjacent the nose. The member 11 is released from the member 10 by depressing the catch to disengage it from the groove in the member 11. The cap and the member 11 are fitted with rings 13 for attachment to a necklace, bracelet or watchband. The clasp may be rectilinear and the internal aperture of the member 10 may have any shape corresponding to the cross section of the member 11. The clasp may be made of metal or plastics.
Patent GB-1364562-A (GB)
Title: Device for scoring a flat strip or sheet of glass
IPC: C03B33/027
Filed: 1971-09-21
Abstract: 1364562 Scoring sheet glass SAINT-GOBAIN INDUSTRIES 21 Sept 1971 [22 Sept 1970] 43984/71 Heading C1M A device for scoring sheet glass comprises a scoring tool mounted on a carriage movable along a guide rail, the carriage and guide rail being provided with the inductor element and the armature element respectively of a linear induction motor operable to move the carriage along the rail. As shown, a guide rail 3 includes two guide bars 7, 8 received in recesses 12, 13 on the carriage 4 fitted with ball races, and a steel plate 6. The carriage further includes an inductor element 14 and carries a scoring tool 16. The inductor element 14 forms with an inducer circuit provided by the plate 6 and a beam 5 the linear induction motor. The plate 6 may have adjacent one or both ends localized linings of copper or aluminium to provide stronger carriage starting induction forces. Means may be provided for inverting the phases of the alternating current supplied to the inductor element and/or to supply direct current to the inductor element to cause braking of the carriage. The tool may be a cutting wheel of nitrided steel.
Patent GB-1475664-A (GB)
Title: Package carrier having rod-shaped carrier elements extending parallel with its axis
IPC: B65H75/18
Filed: 1975-10-28
Abstract: 1475664 Yarn package carrier E JUNGBECKER C JUNGBECKER G JUNGBECKER and J JUNGBECKER Jnr [trading as JOS ZIMMERMANN] 28 Oct 1975 [2 Nov 1974] 44386/75 Heading D1L Yarn package carrier comprises cylindrically arranged parallel elongate members 3 attached to an end ring 1 provided with apertures 10 therein for receiving the free ends 6 of the members 3 of a second carrier so that the carriers can be pushed together in an axial direction for dyeing as far as the stiffening ring 8. The end ring 1 may be serrated [Fig. 8 (not shown)] so that the free ends 6 are guided into the apertures. The members 3 adjacent the end ring 1 may be formed by a pair of parallel spaced arms (29) [Fig. 8] between which, in the space (30), the free ends 6 locate. A serrated slip ring (41) [Fig. 8] may also be provided.
Patent GB-1195327-A (GB)
Title: Device for Heating the Heads of Ingot Moulds or the Gates of Casting Moulds
Inventor: HEIDE OTTO
IPC: B22D27/06
Filed: 1968-09-18
Abstract: 1,195,327. Electric resistance elements. O. HEIDE. 18 Sept., 1968, No. 44407/68. Heading H5H. [Also in Division B3] A device for heating the heads of ingot moulds or the risers of casting moulds to provide a supply of molten metal to compensate for shrinkage comprises a tubular feeding jacket 38 for fixing in the head or riser, a ceramic or ceramic lined hood 39 on top of the jacket and an electrical resistance element 14 which projects into the hood 39 and is supported by a contact ring 19 which is divided into insulated sections to supply electric current to element 14. The element may be in the form of a carbon or graphite cylinder split longitudinally to provide two legs which are supplied by semi-circular water-cooled insulated sections of the contact ring. If a three-phase supply is provided the ring is composed of three arcuate sections and the cylinder is split to provide three legs. Alternatively the element may comprise a graphite cylinder closed at one end and a central coaxial core extending into the cylinder from the closed end. The contact ring comprises two vertically spaced and insulated ring sections, one of which embraces the cylinder and the other the core. Heat is radiated to the metal in jacket 38 from a graphite or carbon plate 41 coated on its underside with ceramic 42. Recesses 46 in jacket walls 38 allow the walls of the jacket to heat metal. The temperature of metal in the jacket may be sensed by a thermocouple which controls the supply to the heating element. The walls of the jacket or the packing around the jacket may be made of exothermal material so that it ignites and initially heats the molten metal. The walls of the jacket may be coated material which becomes detached during the electric heating and forms a protective layer on the surface of the melt to prevent it cooling too rapidly. Alternatively the coating may be used to introduce alloy elements into the melt or to produce a gas atmosphere in the jacket. The contact ring and/or the hood may be pivotally mounted to remove the heating element from the riser or head.
Patent GB-1464261-A (GB)
Title: 11,12-secoprostaglandins
IPC: C07C239/00
Filed: 1974-10-14
Abstract: 8,10-Diaza-9-oxo-(and -thioxo)-11,12-secoprostaglandins of the following formula <IMAGE> are prepared, in which the substituents are described in Claim 1. For the preparation of 9-oxo compounds, corresponding nitriles are hydrolysed to compounds of the formula I in which R<1> denotes carbamoyl. The reaction is carried out in the presence of a basic catalyst. The 9-thioxo compounds are obtained by first reacting with a thioaliphatic acid in the presence of an initiator catalyst which generates free radicals and then subjecting to the said basic hydrolysis. The compounds prepared, which are present as the free acid, can be converted into their corresponding pharmaceutically acceptable salts and esters, also only the free hydroxy group in the said compounds can be esterified. The compounds obtained are structurally related to the natural prostaglandins and they are active therapeutic agents for the treatment of a variety of human and animal diseases and they are employed in particular in the renal, cardiac and vascular, gasterointestinal, respiratory, immune and reproductive system and in the control of lipoid metabolism, inflammation, blood coagulation, skin diseases and certain cancers.
Patent GB-1263520-A (GB)
Title: Improvements in partial pressure sensor
IPC: G01N27/49
Filed: 1969-09-09
Abstract: 1,263,520. Electro-chemical analysis. GENERAL ELECTRIC CO. Sept.9, 1969 [Sept.16, 19681, No.44430/69. Heading G1N. In an electro-chemical cell for measuring the partial pressure of a gas particularly oxygen and having a diffusion barrier with a catalytic electrode on the inner face, the CATALYST is a THIN COATING e.g. of gold, palladium or platinum formed preferably by electroless coating on a non-gas-absorbent layer e.g. of nickel or stainless steel. The diffusion barrier for oxygen is preferably polyphenylene oxide. In one example the substrate is a nickel or stainless steel powder, formed into a slurry with barrier material solvent and deposited by silkscreen techniques thereon, Fig.1 (not shown), alternatively the powder may be sintered and hot pressed into the barrier Fig.2 (not shown). The CELL may have an aqueous (hydroxide) electrolyte with a copper counter electrode for the determination of oxygen. Alternatives: (i) the electrolyte may be replaced by an ion exchange resin layer. (ii) the counter electrode may be a catalytic cathode with a hydrogen supply.
Patent GB-1032599-A (GB)
Title: Junction transistor structure
IPC: H01L29/73
Filed: 1964-11-02
Abstract: 1,032,599. Interdigitated transistors. WESTINGHOUSE ELECTRIC CORPORATION. Nov. 2, 1964 [Nov. 29, 1963], No. 44611/64. Heading H1K. In a transistor having base and emitter electrodes and an emitter region of interdigitated configuration, the extremities of the emitter electrode are closer to the base electrode and/or the P-N junction than the remainder of the electrode. Such a constriction is said to aid heat dissipation since the injection of carriers will be concentrated in those portions of the transistor where resistance is lower and the heat dissipation higher. In a specific embodiment (Figs. 2 and 3), a P-type Si wafer 12 has an N-type region formed over its entire surface by doping with phosphorus and its upper surface masked and etched to leave an emitter region 14 of desired interdigitated configuration. The device is then heated to redistribute the N-type impurities, thus giving emitter and collector regions 14 and 10 respectively. Contact electrodes for the base and emitter regions are made by plating with Ni through a mask and depositing Pb or Pb/Sn to give electrodes 22 and 24 respectively. The collector contact 20 may be mounted on a header with an encapsulation therearound. The gap between the web portion 24h of the emitter contact and the base electrode is preferably up to two times that between the extremities 24a of the emitter contact and the base electrode, whilst the P-N junction 13 is spaced equidistant from the base and emitter contacts 22 and 24. The emitter and base fingers at the centre of the device may be wider than those at either edge, e.g. wider by 50%, thus heat concentration at the centre of the device is minimized. In alternative embodiments the width of the contacts may be varied in a step configuration (Fig. 4, not shown) or the contacts may be uniformly spaced but the P-N junction spaced closer to the emitter contact at the extremities of the fingers (Fig. 5, not shown).
Patent GB-1472520-A (GB)
Title: Vehicle suspension system
IPC: B66C9/12
Filed: 1975-10-30
Abstract: 1472520 Vehicle suspension system FRANZ PLASSER BAHNBAUMASCHINEN INDUSTRIE GmbH 30 Oct 1975 [25 April 1975] 44888/75 Heading B7L A rail vehicle suspension system is characterized in that hydraulic units 37, for example piston-and-cylinder units, are connected between the vehicle chassis and the ends of the wheel axle sets or the vehicle bogies, and the hydraulic units on each side are interconnected to equalize the load on the vehicle wheels. The suspension system is particularly applicable to mobile cranes and track-laying machines. The hydraulic units are hingedly mounted at both ends 44 and are adjustable along guides 39 on the vehicle chassis. The bogies 26 include rockers 28 mounted thereon by springs 29 and dampers 32. Duets 17, 18 connecting the hydraulic units on one side of the vehicle include measuring devices for indicating the wheel loads, similar devices being provided in the two ducts on the other side of the vehicle.
Patent GB-1330522-A (GB)
Title: Waste treatment processes
IPC: C02F1/54
Filed: 1970-09-21
Abstract: 1330522 Flocculating solids in suspension HERCULES Inc 21 Sept 1970 [23 Sept 1969 7 Aug 1970] 44948/70 Heading C1C A process of concentrating or dewatering the solids of an aqueous waste (e.g. activated sludge) having 0À2-12% by wt. solids, at least 20% by wt. of the solids being biological solids, comprises contacting the waste with a watersoluble vinyl homopolymer which is prepared by polymerizing a quaternary ammonium monomer or a water-soluble modified vinyl homopolymer which is prepared by polymerizing a tertiary amine monomer and quaternizing in excess of 50% of the amine nitrogen atoms, the homopolymer or modified homopolymer containing recurring units having one of the general formulµ wherein R<SP>1</SP>, R<SP>2</SP>, R<SP>3</SP> = alkyl or benzyl, there being not more than one benzyl group in the monomer, where R = hydrogen or methyl and R<SP>8</SP>= alkylene, or R<SP>4</SP>=-CH 2 -CH 1 -OCH 2 CH 2 -, R<SP>5</SP>=a quaternizing substituent (e.g. alkyl, benzyl or hydroxyethyl), R<SP>6</SP> = methyl or ethyl, R<SP>7</SP>=alkyl, benzyl or hydroxyethyl, x=0, 1 or 2 and X=anion. The quaternizing agent may be alkyl halides, sulphates or phosphates, benzyl chloride, methyl p-toluene sulphonate, allyl chloride, ethylene bromohydrin or epichlorohydrin. The waste after treatment with the polymer may be vacuum filtered, settled or subjected to flotation. The polymers may be added dry or in aqueous solution to the waste.
Patent GB-1036607-A (GB)
Title: Process and apparatus for the continuous production of filaments
IPC: C03B37/081
Filed: 1964-11-05
Abstract: A process for the continuous production of glass filaments comprises feeding a plurality of individual rods 1 (Fig. 1, not shown), guided near their lower end, into a linear tube-like enclosed heating zone 5 of more than 12 inches in length and heating the rods to form a fused glass mass having a series of lineal zones V1-V4\t (Fig. 2, not shown) of equal viscosity, each zone merging with one immediately below it of lower viscosity, the zone of lowest viscosity V3 being divided into a large number of downwardly directed cylindrical streams in which the viscosity is increased to that necessary to form the drop for the continuous production of the filaments, which drops form automatically after a break in a filament and draw new filaments behind them.  The tubular bushing 5 has a large number of depending cylindrical tubes 7 arranged in groups such that the distance between each group of tubes 7 and each individual tube 7 is greater than the diameter of a drop formed on the tip of each tube.  As drops 10 fall drawing a filament 9 behind them they contact a curved plate 13 which guides them on to a first rotating drawing drum 12 which then causes the filaments to be drawn across the surface of a sizing roll 11, the angle between the vertical and the filament at the point of contact with roll 11 being very small.  The bushing is made of platinum-rhodium alloy and is directly connected to an electrical supply so that it acts as its own heater.  Only the bushing is insulated, the depending tubes being open to the movement of air so that they may be cooled.  A suitable glass has the composition 68% SiO2, 4-6% Al2O3, 15% Na2O + K2O + B2O3 and the remainder alkaline earth oxides.
Patent GB-997243-A (GB)
Title: Motor-compressor system
IPC: F02B71/04
Filed: 1961-12-18
Abstract: 997,243. Free piston compressors and gas generators. SOC. CIVILE POUR L'ETUDE D' ENGINS A PISTONS LIBRES E.P.L. Headings FIN and F1Q. In a free piston compressor comprising compressor pistons 6, 6<SP>1</SP> Fig. 1 mechanically coupled to scavenger pistons 3, 3<SP>1</SP> and to floating motor pistons 1, 1<SP>1</SP> reciprocating within a common cylinder 7 surrounded by an air reservoir 13 and supplied with fuel injected through a nozzle 38, each of the compressor cylinders 25, 25<SP>1</SP> only one of which will be described has a pair of spaced ports 28, 29 or a single elongated port in a mid portion of its side and an inlet check valve 26 near the end which together with an annular chamber 30 surrounding the outer end portion of the cylinder 25 serve to connect the air intake space 34 of the cylinder provided with an automatic inlet valve 35 with the compression space 41 having an automatic delivery valve 27 whereby during that portion of the return stroke wherein port 29 remains unsealed by the piston and after the pressure in the pressure space 41 has fallen sufficiently to allow the check valve 26 to open and so connect space 41 to chamber 30, as shown in Fig. 3 pressure is equalized on both sides of the piston until such time as port 29 becomes sealed as shown in Fig. 4 after which pressure in space 34 is built up to almost that of the delivery pressure resulting in an equal amount of work being performed by the gas pressure forces on opposite sides of the piston. The inlet valve 35 remains open during only a small portion of the return stroke and until valve 26 opens to allow equalization of pressure in spaces 41, 34 which is above the pressure in the inlet manifold 40. The compressor pistons 6, 6<SP>1</SP> are connected through carden joints 5, 5<SP>1</SP> to scavenging pump pistons 3, 3<SP>1</SP> connected to each other by rack and pinion means 36, 37, 36<SP>1</SP>, 37<SP>1</SP> and connected by rods 2, 2<SP>1</SP> to opposed diesel motor pistons 1, 1<SP>1</SP> located in a common cylinder 7. In operation and following injection of fuel through a nozzle 38, the pistons 1, 1<SP>1</SP> seal ports 11, 11<SP>1</SP> and compress air in cushioning chambers 12, 121 whilst pistons 3, 3<SP>1</SP> cause a partial vacuum in chambers 23, 23<SP>1</SP> and force scavenging air past check valves 19, 19<SP>1</SP> and through conduits 20, 20<SP>1</SP> into a tank 13 surrounding the cylinder 7 towards the end of the stroke motor piston 1<SP>1</SP> uncovers exhaust port 9 which may be connected to a turbine (not shown) whilst piston 1 uncovers a scavenging port 8 thereby allowing the cylinder 7 to be swept free of combustion products with compressed air which is also exhausted through port 9. The return stroke of pistons 1, 1<SP>1</SP> is effected in part by compressed air in chambers 12, 12<SP>1</SP> and in part by suction in chambers 23, 23<SP>1</SP>.