baber/WOPTO huggingface dataset:
Patent GB-1179938-A (GB)
Title: Medicinal Sustained-Release Tablets.
Inventor: HESS DUANE CHRIS
IPC: A61K9/22
Filed: 1967-11-20
Abstract: 1,179,938. Medicinal tablets. MERCK & CO. Inc. 20 Nov., 1967 [23 Nov., 1966], No. 52706/67. Heading A5B. A sustained release tablet, which comprises a core composed of medicament dispersed in a wax or wax-like material and surrounded by a coating (which may also contain a medicament) which preserves its shape at the temperature at which the wax melts, is made by forming the core by compression of a mixture of wax and medicament, applying the coating by conventional methods, heating the tablet to ensure melting of the wax and cooling to room temperature. Suitable wax materials are hardened animal, vegetable and mineral oils, higher fatty alcohols and acids, beeswax, glycerol monostearate and polyethylene oxide. Suitable coating materials are methyl- and ethyl-cellulose, cellulose acetate, cellulose acetate phthalate and hydroxypropyl cellulose. Examples relate to tablets containing KCl, amitriptylene and chlorothiazide. An additional outer coating, e.g. of sugar, may be applied to the tablets.
Patent GB-1374876-A (GB)
Title: Guiding stiff sheet materials in rotary printing machines
IPC: B41F21/05
Filed: 1972-11-15
Abstract: 1374876 Feeding sheets ROLAND OFFSETMACHINENFABRIK FABER & SCHLEICHER AG 15 Nov 1972 [15 Nov 1971] 52812/72 Heading B8R [Also in Division B6] A reciprocating gripper 5 for feeding stiff sheets from a feed table 1, to which they are fed in underlapping arrangement, to the grippers 15 15<SP>1</SP> of an impression cylinder has rollers 56, 61, mounted on the gripper parts such that as the gripper returns to the feed table and rollers engage the trailing edge of the previously fed sheet to avoid damage thereto. The rollers are preferably metal-coated plastics material.
Patent GB-1536878-A (GB)
Title: Octapeptide
IPC: C07C231/00
Filed: 1975-12-29
Abstract: 1536878 Octapeptide CHOAY SA 29 Dec 1975 [31 Dec 1974] 53032/75 Heading C3H Per se octapeptide (I) H-Leu-Ser-Arg-Leu-Phe-Asp-Asn-Ala-OH Peptide intermediates isolated are: OCTAPEPTIDE: Boc - Leu - Ser(OBzl)- Arg(NO 2 )-Leu-Phe-Asp(OBzl)-Asn-Ala-OBzl. PENTAPEPTIDES: Boc - Leu - Ser(OBzl)- Arg(NO 2 )-Leu-Phe-OCH 3  and OH. TETRAPEPTIDES: Boc and H - Ser(OBzl)- Arg(NO 2 )-Leu-Phe-OCH 3 . TRIPEPTIDES: Boc and H - Arg(NO 2 ) - Leu- Phe-OCH 3 ; Boc and H-Asp(OBzl) -Asn-Ala-OBzl. Dipeptide intermediates isolated are: Boc and H-Asn-Ala-OBzl; Boc and H-Leu-Phe- OCH 3 . Pharmaceutical compositions comprise oetapeptide (I), preferably in unit dosage form, especially 0À2 to 10 mg. and physiologically acceptable excipients and adjuvants and/or insulin.
Patent GB-1487357-A (GB)
Title: Fast-neutron nuclear reactors
IPC: G21C11/02
Filed: 1974-12-09
Abstract: 1487357 Nuclear reactor shields COMMISSARIAT A L'ENERGIE ATOMIQUE 9 Dec 1974 [13 Dec 1973] 53167/74 Heading G6C A fast reactor, particularly cooled by molten sodium, the core 1 is surrounded by a neutron shield structure comprising assemblies 20, 22 disposed in adjacent concentric rings around the core, each assembly being of generally cylindrical shape defining an axial bore for throughflow of coolant. The description is given in relation to a reactor whose core support grid is constructed as described in Specification No. 1,401,142 and comprises (a) a main grid part formed of an upper plate 13 and a domed, lower plate 14 the space between which receives coolant from a pump 10 via an annular header 12 and (b) a secondary or "dummy" grid part 23 at the core periphery. The neutron shield structure comprises a first, inner annular region 19 the assemblies 20 of which are supported by the main grid part and a second, outer annular region 21 the assemblies 22 of which are supported by the "dummy" grid part 23. Each assembly 20 comprises a body formed of a stainless steel tube (31) (Fig. 2, not shown) and a foot (36). The assembly is supported by the upper and lower plates 13, 14 and the foot (36) affords apertures (40) for ingress thereto of coolant (under forced circulation) from the space between the plates 13, 14. The interior of the foot (36) accommodates a flow-regulating throttle comprising an axial rod (42) mounting axially spaced radiating baffles (43). Coolant egress from the upper end of the assembly is via an apertured top plug (44). Each assembly 22 comprises a tubular stainless steel body (51) (Fig. 3, not shown) and a foot (53) closely surrounded by a tubular guide (54) of the "dummy" grid 23. The lower end of the foot (53) terminates in a conical plug (55) formed with parallel coolant inlet passages (56) whereby coolant from the main pool 9 within the reactor vessel 5 may circulate by natural convection through the assembly 22 to emerge at its upper region through lateral apertures (59).
Patent GB-1057976-A (GB)
Title: Polymers and photographic emulsions containing them
IPC: C08F20/60
Filed: 1965-12-16
Abstract: N-a -Methacrylyl-histidine is prepared from L-histidine and methacrylic anhydride in methacrylic acid.ALSO:A polymer contains from 40 to 100 mole per cent of units of Formula I and from 60 to 0 mole per cent of units of Formula II <FORM:1057976/C3/1> <FORM:1057976/C3/2> wherein R1 and R2 are each H or CH3, and is prepared by polymerization of corresponding acryl monomers in a solvent (e.g. water, dioxane) and in the presence of a catalyst (e.g. potassium persulphate or azodiisobutyronitrile) and in an inert atmosphere.
Patent GB-1312908-A (GB)
Title: Lamp-shades
IPC: B31D5/04
Filed: 1971-11-23
Abstract: 1312908 Lampshades J BUCKWALD 23 Nov 1971 [19 Feb 1971] 54373/71 Heading F4R A lamp-shade is formed of a number of paper sheets joined together by a number of radially spaced lines of adhesive 3, 4 parallel to an axis 6 about which the joined sheets can be arranged to form a body of revolution, wherein lines of adhesive 3 joining the sheet on one side to another sheet alternate in a radial sense with lines of adhesive 4 on the other side thereof joining it to a sheet on the other side and the distance between consecutive lines of adhesive 3, 4 increases with increasing distance of the lines from the axis 6. Preferably the two adhesive lines nearest the axis are not more than 5 mm. apart and the edge 5 of the sheets furthest from the axis is 1-2 mm. from the outermost line of adhesive. When formed as a body of revolution the end-sheets may be clipped together and the ducts formed between adjacent sheets, e.g. rhomboid in cross-section, are parallel to the axis and permit cooling of the light source by an air flow therethrough. The lamp-shade may be folded for storing or opened in the manner of Christmas decorations.
Patent GB-1180168-A (GB)
Title: Battery Charging Arrangement
IPC: H02J7/02
Filed: 1968-11-18
Abstract: 1,180,168. Battery charging apparatus for portable appliances. GENERAL ELECTRIC CO. 18 Nov., 1968 [4 Dec., 1967], No. 54575/68. Heading H2H. Battery charging apparatus for a portable appliance 11 such as an electrically operated toothbrush comprises a stand 12 containing one C-shaped half, 17, of the magnetic core of a transformer on which is wound the primary winding 18, the other C-shaped half, 16, of the core being housed in the appliance 11 and containing the secondary winding 26, the arrangement being such that when the appliance 11 is placed on the stand 12 the transformer functions to charge the battery 27 which powers the appliance. Rectification is provided by a diode 27 and a Zener diode 31 provides a substantially constant charging voltage. An indicating lamp 24 is also provided.
Patent GB-1125569-A (GB)
Title: Aircraft guidance system
IPC: E01F9/00
Filed: 1965-12-23
Abstract: 1,125,569. Runway lamps. SYLVANIA ELECTRIC PRODUCTS Inc. 23 Dec., 1965 [23 Dec., 1964], No. 54664/65. Heading F4R. A runway light comprises a flat plate 14 having a raised central plateau 16, and an optical system held within a tube 32 and including a lamp 48, a condenser lens system 40, and a bent optical conduit 36 having an entrance window 34 to receive light from the condenser and an exit window 38 disposed outside the tube in the central plateau, a wedgehaped slot 18 (Fig. 1, not shown) being formed in the plate for the passage of the light leaving the conduit. The plate is made of cast metal and may be welded at its edge 24 to the deck 12 of an aircraft carrier, a removable coverplate 58 being provided to protect the end of the conduit. The tube 32 has a flange 56 at its upper end which is seated in rubber gaskets 64 in a counterbore 29 in the plate 14, the conduit 36 being encased in shock absorbent potting material 39 such as silicone rubber. The lamp 48 has a base 68 filled with similar potting material and is releasably held in the bottom of the tube 32 by a screw 72 so that it may be replaced without removing the rest of the optical system.
Patent GB-1447393-A (GB)
Title: Capacitors
IPC: H01G9/012
Filed: 1973-11-27
Abstract: 1447393 Electrolytic capacitors UNION CARBIDE CORP 27 Nov 1973 [28 Nov 1972] 54847/73 Heading H1M In a substantially cylindrical tantalum solid electrolytic capacitor having an axial anode lead 3, the cathode lead 5 has one end portion 11 for soldering to the cylindrical surface of the capacitor body and is bent as shown so that its other end portion is co-axial with the anode lead 3 and extends in the opposite direction.
Patent GB-1140460-A (GB)
Title: Process for the manufacture of hydrazine
Inventor: MANION JEAN PATRICK
IPC: C01B21/16
Filed: 1966-12-09
Abstract: 1,140,460. Hydrazine production. ALLISCHALMERS MFG. CO. 9 Dec., 1966 [20 Dec., 1965], No. 55196/66. Heading C1A. Hydrazine is produced by subjecting to an electrical glow discharge, ammonia heated to at least 405 C. and under reduced pressure, i.e. from 10 to 100 millimetres of mercury, the current between the electrodes being at least 40 milliamperes. The preferred temperature range for the ammonia is 440 C.-650 C. and preferred pressure range is 10-50 millimeters of mercury. The linear gas flow used is 3,000 to 30,000 centimeters per second. The cathode is preferably a low work function cathode having a photo-electric work function of less than 2À5 electron volts; a tungsten wire cathode having a surface coating of caesium oxide and strontium oxide and a water-cooled stainless steel tubular anode are used in the examples.
Patent GB-1159937-A (GB)
Title: Improvements in or relating to Semiconductor Devices.
IPC: H01L29/00
Filed: 1966-12-09
Abstract: 1,159,937. Transistors. INTERNATIONAL BUSINESS MACHINES CORP. 9 Dec., 1966 [22 Dec., 1965], No. 55215/66. Heading H1K. A transistor is made by forming side by side emitter and collector zones 1000-3000 Š apart in one face of a semi-conductor layer or body by diffusion through oxide masking. Typically the two zones are of the same shape and size and their functions interchangeable, with the base contact substantially surrounding the area occupied by them. A gate electrode is preferably provided on the oxide layer over the emitter-collector gap to enable the transconductance of the device to be varied or to allow its use as an insulated gate FET with the base electrode disconnected. Base resistance may be reduced by a heavily doped zone formed by diffusion into the substrate prior to formation of the base zone proper by epitaxial deposition, the zone being extended to the base contact region by inward diffusion.
Patent GB-1196378-A (GB)
Title: Ignition and Fuel Injection Control for an Internal Combustion Engine
IPC: F02M45/02
Filed: 1968-11-21
Abstract: 1,196,378. Fuel injection and ignition systems. DR. ING. h.c.F. PORSCHE K.G. Nov.21, 1968 [Dec.20, 1967 [Dec.20, 1967 No.55221/68. Heading F1B. To ensure good mixing of the fuel and air in a fuel-injection type I.C. engine, particularly at low engine speeds when the air flow is low, the fuel injection for each cycle is divided into a plurality of separate spaced injections to provide additional turbulent rising, and a number of separate spaced ignitions for each cycle are also provided. The quantity of fuel injected is regulated by a device 14, which is preferably a monostable multi-vibrator producing pulses having a duration preferably dependent on the position of the accelerator pedal and on engine operating conditions including speed and temperature, singly or in combination. The output of the device 14 is fed to an electronic switch, preferably an AND gate 17, to which is also fed pulses generated at uniform intervals of, say, 1 ms by an astable multi-vibrator 15. The output pulses of the AND gate 17, which occur only when the inpurts to the gate from the multivibrators 14 and 15 occur simultaneously, pass via an amplifier 18 and a mechanical or electronic distributer 19 to the electrically-actuated fuelinjection nozzle 8 of the appropriate cylinder 1. The pulses from the multi-vibrator 15 are also fed to a further AND gate 26, which is also fed with pulses from a pulse-number limiter 16 which preferably comprises a resistance-capacitance timing circuit dependent on engine speed. Simultaneous inputs to the AND gate 26 produce an output pulse to operate an ignition device 27, preferably comprising a high-voltage capacitor, connected by a further distributer 28 to the spark plug 9 of another cylinder differing from the firstmentioned cylinder by 180 degrees of the cycle. Timing is effected by engine-driven contacts 12 connected via a line 13 to the devices 14, 15, 16. The contacts 12 are set to provide the maximum advance of timing, and a timing device 33 delays the pulses from the contacts in correspondence to engine speed. The number of fuel injections and ignitions per cycle decreases from four at idling speed of about 1, 000 r.p.m. to one at speeds of more than 3, 500 r.p.m.
Patent GB-1377880-A (GB)
Title: Removal of mercury ions from solutions which contain mercury in  the form of soluble salts
IPC: C02F101/20
Filed: 1972-11-30
Abstract: 1377880 Removing mercury from solutions AKZO NV 30 Nov 1972 [1 Dec 1971] 55285/72 Heading C1C Mercury ions are removed from a solution containing a mercury salt by contacting the solution with a homo- or co-polymer of acrylonitrile in which the nitrile groups are partly replaced by thioamide and/or mercaptomide groups. The polymer may be used in the form of powder, granules, shavings or fibres and may be in a swollen state. The solution may be passed through a bed of the polymer. Comonomers may be butadiene, styrene, methyl methacrylate, divenyl benzene and acetylstyrene.
Patent GB-1430209-A (GB)
Title: Acrylic polymer powder coating compositions
IPC: C08L1/14
Filed: 1973-11-29
Abstract: 1430209 Acrylic powder coating compositions E I DU PONT DE NEMOURS & CO 29 Nov 1973 [30 Nov 1972 9 Oct 1973] 55339/73 Headings C3P C3R and C3F Thermosetting acrylic polymer powder coating compositions comprise finely divided particles having a particle size of 1-100 microns, which particles are composed of an intimately mixed blend of film-forming constituents comprising (A) 50-85% by weight of an acrylic polymer containing units of (1) 70-97% (based on the weight of the polymer) of methyl methacrylate and/or styrene, (2) 1-10% of a C 2 - C 12 -alkyl acrylate or a C 8 -C 12 -alkyl methacrylate and (3) 2-20% of a C 2 -C 4 -hydroxyalkyl acrylate or methacrylate, the polymer having a Tg of 71-95‹ C. and a weight average molecular weight of 10,000 to 25,000; (B) 5-25% by weight of cellulose acetate butyrate having a viscosity of 0À005 to 2À0 seconds (measured at 25‹ C. according to ASTM-D-1343-56) and a butyryl content of 30-60% by weight; (C) 4.98-25% by weight of an alkylated or alkoxyalkylated melamine-formaldehyde resin having a ratio of (alkoxy)alkoxymethyl groups to methylol groups of at least 5 : 1 and 1 to 8 carbon atoms in the (alkoxy)alkyl groups; (D) 5-15% by weight of an hydroxy-terminated polyester plasticizer having a number average molecular weight of 500 to 4000; and (E) 0À02- 5À0% by weight of an acid catalyst blocked with a blocking agent. The powder particles may also include 0À2-50% by weight of pigment (e.g. titanium dioxide, iron oxide pigment, carbon black or organic pigments), and other components such as additional plasticizers, silicone resins (to enhance flow and reduce cratering) and silica (to prevent caking). Component (C) is preferably hexa(methoxymethyl) melamine, component (D) is preferably hydroxyterminated polycaprolactone, and component (E) is preferably p-toluene-sulphonic acid blocked with an epoxy resin. The powder particles can be used for coating metal, glass, plastics or fibre-reinforced plastics substrates by such techniques as electrostatic spraying, fluidized beds or electrostatic fluidized beds.
Patent GB-1472320-A (GB)
Title: Furanose derivatives
IPC: C07H9/04
Filed: 1974-12-23
Abstract: The process for the preparation of D-xylofuranose derivatives of the formula I in which R<2> is a benzyl group which is optionally substituted in the side chain comprises exposing 5-O-tosyl-D-xylofuranose derivatives of the formula V in which   R<3> is hydrogen, an alkyl group with 1-4 carbon atoms or an aryl group,   R<4> is hydrogen or an alkyl group with 1-4 carbon atoms, or else   R<3> and R<4> together are an alkylene bridge with 4-6 members, at room temperature to the simultaneous action of compounds of the formulae R1OH and R1ONa, where R1 is an aliphatic radical with 1-4 C atoms, isolating the 3,5-anhydro-D-xylofuranose derivative of the formula IV which is formed, and exposing the compounds of the formula IV or compounds of the formula V to the simultaneous action of compounds of the formulae R2OH and R2ONa, isolating the 5-O-R<2>-D-xylofuranose derivatives of the formula III as such or in the form of their adducts, and reacting them in the presence of acid catalysts with compounds of the formula R1OH, subsequently isolating the D-xylofuranosides of the formula II which are formed, and converting the compounds of the formula II or the D-xylofuranose derivatives of the formula III by reaction with dilute mineral acids into the D-xylofuranose derivatives of the formula I and isolating the latter. The compounds of the formula I have activity against venous disorders and furthermore have an antiinflammatory action. <IMAGE>
Patent GB-1326586-A (GB)
Title: Arrangement for testing the strength and durability of hydraulic
IPC: G01N3/36
Filed: 1970-11-23
Abstract: 1326586 Testing components AVIATEST GmbH 23 Nov 1970 [11 Feb 1970] 55656/70 Heading G1N An arrangement for testing the strength and durability of a hydraulic component 10 comprises an electrical generator 1 whose output is shaped at 2 and fed to a summation amplifier 3 which feeds a servo-valve 4 controlling the input to a cylinder 5 to operate on a piston 6. This piston is connected through a rod 7 to a piston 8 in a cylinder 9 which applies pressure to the sample 10. A pickup device 11 detects the pressure surges, these signals being amplified at 12 and fed to a recording apparatus. They are also fed back as a second input to the amplifier 3 in which comparison is made between these actual signals and the reference signals obtained from the shaper 2 so as to adjust the output signal fed to the valve 4.
Patent GB-1359964-A (GB)
Title: Process for the preparation of glycicyl ethers of bisphenols
IPC: C08G59/04
Filed: 1972-12-01
Abstract: 1359964 Liquid epoxy resins SOC ITALIANA RESINE SIR SpA 1 Dec 1972 [27 Dec 1971] 55720/72 Heading C3B Liquid epoxy resins are prepared by reacting diphenols with epichlorohydrin in presence of an inorganic base and from 0À5 to 25 parts by weight for every 100 parts of diphenol of a polyethylene glycol, polypropylene glycol, mixed polyethylene polypropylene glycol, mixed polyethylene polypropylene glycol alkyl monoether or a mixture of said glycols, all having a molecular weight in the range 200 to 800. The inorganic base is preferably sodium or potassium hydroxide. Specified diphenols are bisphenol-A, resorcinol, catechol, hydroquinone and methyl resorcinol. The above liquid epoxy resins or blends thereof with polyethylene glycol 400 may be hardened with triethylene tetramine.
Patent GB-1432162-A (GB)
Title: System for connecting a barge and a pusher
IPC: B63B21/56
Filed: 1974-12-31
Abstract: 1432162 Pusher tugs and barges ATELIERS ET CHANTIERS DE BRETAGNE ACB 31 Dec 1974 [16 Jan 1974] 56183/74 Addition to 1412054 Heading B7S The inflatable cushions disclosed in the Specification (1,412,054) are inflated by liquid delivered from a pump, and the delivery line includes a pressure accumulator. Each cushion is connected to a respective accumulator or a number of cushions connected in parallel are also connected to a respective accumulator.
Patent GB-1106360-A (GB)
Title: Selvage-forming apparatus for double fabric looms
IPC: D03C7/06
Filed: 1966-12-19
Abstract: 1,106,360. Leno shedding mechanism; weaving pile fabrics. RIEGEL TEXTILE CORPORATION. 19 Dec., 1966 [15 Sept., 1966], No. 56813/66. Heading D1E. Leno selvedges are woven in superposed fabrics by means of long and short needles 44, 50 &c. having their warp eyes at two levels corresponding to the shed lines of the two fabrics. The needles are mounted in frames 20, 20', of which the frame 20' is lifted and lowered at every shed change by a cam 83, and the frame 20 is shogged to the right for one pick and to the left for the next by a cam 70. Weaving pile fabric. The two fabrics may be cut pile fabrics woven face-to-face. Alternatively, the bottom fabric may be the base of a long-loop pile fabric, the upper fabric having warp threads at the selvedges only; the weft picks be on warpwise pile wires and are provided to support the pile warp threads which are woven over them. After weaving, the upper weft threads are cut at some point between the selvedges and the strips of fabric constituting the selvedges are drawn apart, thereby pulling the cut weft threads out of the pile loops.
Patent GB-1141229-A (GB)
Title: Bistable semiconductive glass composition
IPC: H01L45/00
Filed: 1967-12-15
Abstract: 1,141,229. Semi-conducting glass; glass to metal seals. ITT INDUSTRIES Inc. 15 Dec., 1967 [20 Dec., 1966], No. 56999/67. Heading C1M. [Also in Divisions C7, H1 and H3] A semi-conducting glass consists of As, Te and Ge and has a composition within the shaded area A in Fig. 1. The glass may be used in a bi-stable solid state switching device wherein two spaced metallic contacts (e.g. of iron, nickel, or tungsten) are attached to a body thereof. A circuit using a switching device according to the invention is described (see Division H3].
Patent GB-1454386-A (GB)
Title: Traffic signal devices
IPC: F21V11/00
Filed: 1973-12-10
Abstract: 1454386 Signal lamps GEC-ELLIOTT TRAFFIC AUTOMATION Ltd 10 Dec 1974 [10 Dec 1973] 57226/73 Heading F4R In a traffic signal device, phantom signals are prevented by an electro-optical shutter arrangement which operates when the signal is switched off. The shutter may be an array of liquid crystal cells electrically interconnected or a single large cell, located between the reflector and the lens, optionally combined with the lens. Where two or more signal lamps are mounted on a common head, the current to a lamp which is switched on also provides the field which changes the cells of the other lamps from a translucent to an opaque state. In an alternative embodiment, the signal lamp is permanently on, the signal being switched on and off by the shutter arrangement.