baber/WOPTO huggingface dataset:
Patent GB-1485797-A (GB)
Title: Process for the production of a mono-phosphate of an aminoglycosidic antibiotic with an immobilized enzyme
IPC: C12N11/10
Filed: 1974-12-20
Abstract: 1485797 Enzyme isolation and immobilization thereof ZAIDAN HOJIN BISEIBUTSU KAGAKU KENKYU KAI 20 Dec 1974 [25 Dec 1973] 55229/74 Heading C3H [Also in Division C2] Phosphorylating enzymes are immobilized by covalent or ionic coupling to water-insoluble polysaccharides, e.g. agarose, dextran, dextran cross-linked with epichlorohydrin, carboxymethylated dextran, cellulose, carboxymethylated cellulose, phosphorylated cellulose, where appropriate activated for enzyme coupling, e.g. by reaction with cyanogen bromide. The enzymes may be obtained by culturing specified strains of Escherichia coli, Pseudomonas aeruginosa or Staphylococcus aureus, centrifuging the bacterial cells, homogenizing them and extracting with a buffer to obtain a crude enzyme solution. The latter may be purified, e.g. by column chromatography on spheres of agarose chemically linked with 3<SP>1</SP>,4<SP>1</SP>-dideoxykanamycin B.
Patent GB-1073119-A (GB)
Title: Improvements in or relating ot packing containers
IPC: F41A21/02
Filed: 1965-12-31
Abstract: 1,073,119. Helically-wound containers. DYNAMIT NOBEL A.G. Dec. 31, 1965 [Jan. 2, 1965], No. 55473/65. Heading B8D. [Also in Divisions F2 and F3] A method of making packing containers suitable for receiving individual rounds of ammunition comprises forming an opan ended tubular sleeve of circular crosssection by helically winding a strip of vulcanized fibre using an adhesive to join adjacent convolutions, and providing end-closures for the sleeve, at least one end closure being detachable. The vulcanized fibre is produced by passing a cellulosic material eg. paper obtained from rags, through a salt solution, e.g. zinc chloride, or an acid solution and then compressing the material, the paper optionally being impregnated with glycerine or a vulcanized oil. After winding, the tube may be reshaped to an elliptical, triangular, square or polygonal crosssection. The edges of adjacent convolutions may abut, in which case the edges may be bevelled, or they may overlap. The container may comprise a plurality of helically wound strips of the same or different thickness, the seam of an inner strip optionally being covered by the convolutions of an outer strip. The, end closures may be of metal, plastics or vulcanized fibre and may be riveted or bonded to the tube. The external surface of the container may be treated with a moisture-proof lacquer or a plastics material, the latter being applied either as a preformed foil or by dipping or spraying. Suitable adhesives are those based on epoxide resins. The detachable end closure may be held in place by a water-tight adhesive tape. In the embodiment of Fig. 5, the container 1 is made by winding four strips of vulcanized fibre, the two outer windings being shorter than the two inner windings to provide a reduced-diameter neck 5. The closure 3 is also wound from four strips, with the outer two longer than the inner two to define a recess 5<SP>1</SP>, that co-operates with the neck 5. The metal end closures 2, 2<SP>1</SP> are riveted and adhesively secured in place. A waterproof tape seals the joint between parts 1, 3 when they are assembled. Inserts of vulcanized fibre or foamed rubber may be provided to prevent damage to the contents. Both endclosures may be detachable.
Patent GB-1152480-A (GB)
Title: Improvements in or relating to Infrared Radiation Devices
IPC: G02F1/39
Filed: 1966-12-20
Abstract: 1,152,480. Infrared detectors. WESTERN ELECTRIC CO. Inc. Dec.20, 1966 [Dec.23, 1965(2)], No.56880/66. Heading G1A. [Also in Divisions H1 and H3] A square law detector comprises a single crystal of tellurium or selenium to which a coherent beam of infrared radiation is applied. Extrinsic and intrinsic tellurium or selenium are used, intrinsic tellurium having a nominal impurity content, predominately copper, of less than one part in a million with a hole concentration of less than 1 x 10<SP>17</SP> per cu cm. A detector for the modulated coherent output from a transmitter 70, is described. The transmitter comprises a CO 2  laser 12 and a modulating crystal 54 located between crossed polarizers 17, 55. The receiver comprises a rotatably mounted tellurium crystal 77 having its optic axis inclined to the incident radiation and including electrodes 78, 79 connected to a receiver 80.
Patent GB-1413614-A (GB)
Title: Virus production
IPC: C12N7/00
Filed: 1973-12-11
Abstract: 1413614 Rhinotracheitis virus and vaccines RECHERCHE ET INDUSTRIE THERAPEUTIQUES 11 Dec 1973 [18 Dec 1972] 57369/73 Heading ASB A non-pathogenic strain of infectious bovine rhinotracheitis virus is obtained by inducing from a pathogenic strain of the virus a temperature sensitive (ts) mutant strain thereof, by treatment with nitrous acid at pH 4-5, and subjecting the ts mutant to serial passage in heterologous cell cultures until the virus becomes sufficiently attenuated. The resultant organism may be incorporated into intranasal vaccines. The preparation of a specific new temperature-sensitive strain of infectious bovine rhinotracheitis virus "IBR RLB 106" is described and the new strain is claimed. Polyvalent vaccines for intranasal use comprising a virus strain according to the invention together with at least one other live bovine respiratory virus vaccine e.g. bovine parainfluenza 3 are also referred to.
Patent GB-1419583-A (GB)
Title: Clutches
IPC: F16D13/38
Filed: 1973-12-12
Abstract: 1419583 Friction clutches FICHTEL & SACHS AG 12 Dec 1973 [30 Dec 1972] 57537/73 Heading F2C In a double driven disc friction clutch wherein presser plates 4, 5 are urged apart by a Belleville spring 6 to clamp driven discs 2, 3 against a flywheel (not shown) and a cover 1 fast with the flywheel, radial release levers 7 act through tierods 9 to impart a disengaging movement to the pressure plate 4 and the disengaging movement of the pressure plate 4 acts through a lever 8 on the presser plate 5 to impart disengaging movement thereto. As shown the levers 8 are mounted on radial pins 20 carried by the cover 1. An arm 11 of the lever 8 carries an abutment 16 which is adjustable to take up wear and acts on an axial extension 12 of the pressure plate 4. In Figs. 4-7 (not shown) the lever 8 acts on the pressure plates through thrust rods (13 or 18) which may be pivoted to the lever. Anti-rattle springs (15 or 17) are also provided.
Patent GB-1235370-A (GB)
Title: Hygrosensitive element for air-humidity detector and a method of manufacture
Inventor: GABRUSENOK PAVEL STEPANOVICH
IPC: G01N27/12
Filed: 1968-12-04
Abstract: 1,235,370. Hygroscopic elements. P. S. GABRUSENOK. Dec.4, 1968, No.57545/68. Heading G1N. A hygroscopic element, 1, for an air humidity detector comprises a flexible strip of triacetate or nitroacetate bearing a coating of tanned gelatine and lithium chloride, gold or silver foil electrodes 2, being glued to the ends of the strip. The element is made by drawing the strip through a 10% aqueous solution of gelatine at 36C. at a uniform speed of 300 cm. min.<SP>-1</SP> to deposit a layer of thickness 15-20 microns. The strip is dried and then drawn through an aqueous solution of lithium chloride of specific gravity between 1À032 and 1À065 grm. cm.<SP>-3</SP> at 20C. with the addition of 5 to 20 millilitres, of an aqueous solution of potassium bichromate saturated at 20C., per litre. Drawing speed is one cm. min.<SP>-1</SP> at a temperature of 10 to 18C. so that the gelatine is impregnated to threequarters of its thickness with the chloride. The coated strip is then dried for five minutes at a temperature of 50-80C., being simultaneously exposed for 30 minutes to the light from a 100 watt incandescent lamp to tan the gelatine. Finally it is cut and electrodes glued on.
Patent GB-1417406-A (GB)
Title: Cooling apparatus for beverages
IPC: F25D17/02
Filed: 1972-12-18
Abstract: 1417406 Cooling beverages MARSTON PAXMAN Ltd 7 Dec 1973 [18 Dec 1972] 58293/72 Heading F4H A beverage cooling system, e.g. for beer, comprises a refrigeration unit 1, the evaporator 3 of which is in indirect contact with a cooling medium flowing within a tank 4, a pump 6 for pumping the cooling medium via an inlet manifold 7 to a plurality of inlet connections 9 of secondary heat exchangers 8, and an outlet manifold 12 and return pipe 5 for returning the cooling medium to the tank 4. A beer-carrying coil 13 is disposed in each secondary heat exchanger, in between a beer barrel 14 and a beer pump 18. The temperature of the beer is directly monitored by a thermostat 16 which is in contact with the coil 13 and controls a solenoid operated valve 17 in each inlet connection 9. The inlet manifold 7 may be in communication with the return pipe 5 via a restriction 9.
Patent GB-1379249-A (GB)
Title: Hydrogenation of adiponitrile
IPC: B01J23/70
Filed: 1971-12-16
Abstract: 1379249 Activated iron or cobalt oxide E I DU PONT DE NEMOURS & CO 16 Dec 1971 [23 Dec 1970] 58464/71 Heading C1A [Also in Division C2] Iron or cobalt oxide for use as catalyst in hydrogenating adiponitrile to hexamethylenediamine is activated by heating to 300-600 C. in the presence of hydrogen at a partial pressure of 0À1-1000 p.s.i.g. and of 0À001-10% by volume of ammonia based on hydrogen or hydrogen-containing gas, until the oxygen content of the oxide has decreased to below 19% by weight. The oxide is preferably granular and may be ferric, ferroso-ferric, cobaltic or cobaltous oxide, or a mixture thereof.
Patent GB-1215954-A (GB)
Title: Process for producing prestressed glass
Inventor: WARTENBERG ERWIN WILHELM
IPC: C03B27/02
Filed: 1967-12-27
Abstract: 1,215,954. Toughened glass. E. W. WARTENBERG. 27 Dec., 1967 [28 Dec., 1966], No. 58706/67. Heading ClM. Toughened glass is produced by quenching glass, heated to a temperature near to its softening point, in a chilling liquid, which comprises a high boiling point carrying liquid with up to 4% by weight of a low boiling point liquid whose boiling point is at least 100 C. below that of the carrying liquid, and whose heat of vaporization is preferably more than 40 cal./g., for example carbon tetrachloride, methanol, ethanol or (CH 3 ) 3  C-OH. All organic and inorganic liquids which have a high boiling point and which are difficult to vaporize and do not display any affinity for the glass, are suitable as the carrying liquid, for example, oils, preferably those having boiling points about 300 C. and above, waxes, compounds with condensed benzene rings, e.g. terphenyl, and paraffins. The temperature of the chilling liquid is preferably maintained at about the boiling point of the low boiling point liquid. The low boiling point liquid evaporated during quenching is preferably replaced by being condensed or freshly added. Tensile strengths of 3000 kg./cm.<SP>2</SP> can be obtained and fragmentation numbers may amount to more than 100 per cm.<SP>2</SP> even with glass 1-5 mms. thick, so that flat panes may be produced which may then be installed with a certain degree of curvature in rigid curved mountings.
Patent GB-1379607-A (GB)
Title: Apparatus and methods of measuring screw pitches
IPC: G01B11/02
Filed: 1971-12-22
Abstract: 1379607 Measuring screw pitch TOKYO INSTITUTE OF TECHNOLOGY PRESIDENT FOR 22 Dec 1971 [23 Dec 1970] 59572/71 Heading G1M An apparatus for measuring the pitch of a screw 5 comprises a headstock 2 and a tailstock 3 for supporting the screw, means 6 for rotating the screw about its axis, a carriage 4 movable along the bed 1 of the apparatus, a member 7 mounted on the carriage for movement perpendicular to the screw axis, a slider 8 mounted on the member 7 for movement along the screw axis and biased towards the headstock 2 by the spring 11, and a pair of feelers 9 and 10 mounted on  the slider 8 for contacting the same thread flank of the screw 5 at points whose phase differs by 180 degrees. Under the force of the spring 11, the slider 8 moves along and perpendicular to the axis of the screw 5 until both feelers are in contact with thread flank. As the screw 5 is rotated, the carriage 4 is moved by a distance approximately equal to one pitch of screw 5 per revolution of screw 5. The displacement of the slider 8 is measured by an interferometer arrangement comprising a laser LG, a half mirror 13 fixed to bed 1, mirrors 20, 21 fixed to the bed 1, and reflectors 16, 17, 18 fixed to the slider 8 to form a cube corner reflector. The fringes may be counted electronically and displayed digitally. A lamp 24 and photo-transistor 25 co-operate with a disc 23 having a single aperture to produce a signal once each revolution of the screw 5. The screw 5 may be a ball retaining screw, and the feelers may have spherical ends of the same diameter as the balls with which the screw is to be used.
Patent GB-1309848-A (GB)
Title: Bearings
IPC: F16C33/56
Filed: 1970-12-16
Abstract: 1309848 Bearings TORRINGTON CO 16 Dec 1970 [22 Dec 1969] 59618/70 Heading F2A  A rolling bearing comprises a resilient cage 18 provided with a flange or series of projections 38 which engages a shoulder on the outer race 20 so that the cage is prevented from moving axially in at least one direction. A further flange or series of projections may engage a shoulder on the inner race. The cage may be a comb or window cage, and is of plastics or metal. In assembly, the inner race 16 of the bearing 14 is inserted last and retained by a nut 28 acting through a washer 26.
Patent GB-1394808-A (GB)
Title: Hydrostatic steering system for motor vehicles
IPC: B62D5/32
Filed: 1973-12-27
Abstract: 1394808 Hydrostatic steering systems DEERE & CO 27 Dec 1973 [27 Dec 1972] 59741/73 Heading B7H A hydrostatic steering system comprises a main pump 10 supplying a steering unit 42 through a check valve 20 which, in opening, opens a second check valve 28 by means of a plunger (26), Fig. 3 (not shown), linking the valves, the unit 42 being connected to a cylinder 66 the piston-rod of which actuates steering mechanism, not shown. Should the main pump 10 fail, a pump included in the unit 42 and actuated by rotation of the steering wheel operates the cylinder 66 through lines 64, 68. First and second pressure relief valves 70, 72 connect the lines 64, 68 with a by-pass 86 to the return line 46 between the unit 42 and check valve 28. A pressure reservoir 92 is connected to line 46 through a choke 88. In the event of pump failure, the first and second valves 20, 28 close and the cylinder 66 is operated by the steering wheel. The volume of pressure medium displaced by the piston rod is transmitted into the reservoir 92 and returned from it to the opposite side of the piston. The relief valve 72 is provided to relieve excess pressure which may arise in the line 68 due to shocks to the steering wheels. A relief valve 100 ensures that even when the pump is inoperative with the valves 20 and 28 closed any excess pressure can be relieved to the reservoir.
Patent GB-1332819-A (GB)
Title: Flow-electrical transducer
IPC: G01F1/69
Filed: 1970-12-16
Abstract: 1332819 Measuring fluid-flow electrically FESTO MASCHINENFABRIK GOTTLIEB STOLL 16 Dec 1970 [24 Dec 1969] 59796/70 Heading G1N A flow-electrical transducer comprises a fluidflow channel in a support consisting of thermoplastic electrically insulating material i.e. a synthetic polymer or glass, with at least one electric resistance wire, heatable by passage of an electric current through it, traversing the flow channel and having portions embedded in it and passing through the wall of the said flow channel which wire has different diameters at different parts of its length, the part of smallest diameter being arranged in the flow channel and the wire being of larger diameter where it passes through the wall, wire terminals being provided at the exterior of the support for connection to an external circuit. The transducer is made by the steps of: passing heating current through the silver-plated platinum wire 2 to raise it to a temperature in excess of the melting point of the thermoplastic material forming the support tube 1; moving the wire and the support tube together so that the tube wall melts on contact with the wire and resolidifies as the wire is moved towards the centre of the tube; positioning the wire by means of a rod 10 approximately centrally of the tube; removing heating current whilst the wire is tensioned to produce a sag at a part 6 of the wire; removing by electrolysis the plating on the wire inside the tube to reduce its diameter from 100 microns to ten microns. Before the plating is removed a shock current of 6 amps is applied to the wire to evaporate adherent residues from the support tube. End connectors for the wire in the form of gold rings are forced on to the support. In an alternative embodiment Fig.4 the support is boatshaped whereby during incorporation of the wire into the support no material is adhered to the portions of the wire which lie in the flow channel.
Patent GB-1286473-A (GB)
Title: Strippable coating compositions
Inventor: HOUGHTON KELVIN LONGTON
IPC: C09D191/06
Filed: 1969-12-10
Abstract: 1286473 Ethylene-vinylacetate copolymer/ wax compositions IMPERIAL CHEMICAL INDUSTRIES Ltd 3 Nov 1970 [10 Dec 1969] 60326/69 Heading C3P Coating compositions which are easily strippable from substrates, comprise a mixture of 5-40% by wt. of an ethylene-vinylacetate copolymer containing 15-45% by wt. of polymerized vinyl acetate units, 15-39% by wt. of paraffin wax and 2-45% by wt. of one or more liquid chlorinated paraffins of 10-26 carbon atoms per molecule and 40-70% by weight of chlorine, the proportion of chlorinated paraffins in the mixture being not less than 10% of the weight of the copolymer. The composition may also contain 3-15% by wt. (based on the chlorinated paraffin) of one or more corrosion inhibitors to prevent corrosion of substrates by the chlorinated paraffins. Specified inhibitors are epoxy compounds, pentaerythritol esters of long chain fatty acids, benzotriazole and alkaline earth metals of phenol sulphides. A preferred inhibitor mixture is a mixture by weight), of 3 parts octyl epoxy stearate, 3 parts pentaerythritol dioleate, 0À2 parts benzotriazole and 1 part calcium sulphurized phenate.
Patent GB-1360030-A (GB)
Title: Film strip reader
IPC: G03B21/11
Filed: 1971-12-29
Abstract: 1360030 Optical projector MICROFORM DATA SYSTEMS Inc 29 Dec 1971 [24 Dec 1970] 60552/71 Heading G2J In a projector for handling a microfilm strip 16 a film drive device 112, a picture gate 17 and a movably mounted optical system whose movement is controlled by a pantograph 18 are provided. As shown the drive device 112 includes a motor 116 and a centrally grooved rotor defined by two discs engaging the edge of the film 16 and the gate 17 has a fixed upper plate and a pivoted lower plate which clamps the film except when the solenoid 108 is energized during film advance. The optical system includes a lamp 88 with a reflector and an objective lens 86. The lens 86 and lamp 88 are mounted on plate 40 which can slide between guides 44, 48 on plate 42 which in turn can slide between guides 30, 34 on plate 38 The pantograph 18 is attached to the plate 40 and by virtue of the guides 30, 34, 44, 48 the handle 62 can cause movement in mutually perpendicular directions. The image can be directed via mirror 107 to screen 105. Movement of the film between multi-image frames 134 is controlled automatically and a sensor 22 detects the film position photo-electrically.
Patent GB-1246854-A (GB)
Title: Improvements in or relating to articles made from corrugated sheet material
IPC: B65D88/10
Filed: 1968-12-31
Abstract: 1,246,854. Containers. CENTRAL CONTAINERS Ltd. 23 Oct., 1969 [31 Dec., 1968], No. 61947/68. Heading B8P. A freight container, which may conform to international standards, has at least one wall that is corrugated and secured to an adjacent wall continuously along its full length the corrugated wall being cut on a mitre. To avoid the necessity for an accurate join line plates 17 may be provided across parts corresponding to flat portions 12, the join line may be notched to accommodate the plate thickness. If the plate 17 extends the whole length of the side drain holes are provided where the plate extends across the trough-like corrugations 14. A stiffening angle 18 may be provided. If one wall is flat a joining piece 23, Fig. 3, is fitted. This has a part 22 secured to the mitred faces of the corrugations and a flat face 24 secured to the flat wall 25. The wall 25 is stiffened by channel sections 26 secured to its inside surface. The various walls, strips and stiffening members are secured together by welding, brazing, soldering or by an adhesive.
Patent GB-660640-A (GB)
Abstract: 660,640. Calculating-apparatus, mechanical. NATIONAL CASH REGISTER CO. May 6, 1949 [July 17, 1948], No. 703/50. Divided out of 660,620. Drawings to Specification. Class 106 (i). The subject-matter of this Specification is identical with a part of that described in Specification 660,620, but the claims are for adjusting the type setting-members by coupling them to the differential actuators when the latter are restored. The type setting-members remain in adjusted position at the end of the machine cycle so that repeat entries can be made from them. Specification 660,638 is referred to.
Patent GB-671374-A (GB)
Abstract: 671,374. Ticket-holders. BOLLMAN, W. Feb. 22, 1949, No. 4843/49. Class 106 (iii). A casing for the accommodation of a stack of cards or tickets, comprising a withdrawal opening, in the plane of which the front face of the stack is placed and which plane is inclined to the longitudinal axis of the casing, and a spring-loaded slide for advancing the stack towards the withdrawal opening, is characterised in that a transverse rib is provided for retaining the stack, said rib being situated at the front edge of that wall of the casing which forms an acute angle with the plane of the withdrawal opening, said wall and rib being cut away to enable an edge of the cards or tickets to be manually seized. The stack of tickets K, Fig. 1, is urged outwardly of the casing 30 by a slide 32 pressed against the rear of the stack by a spring 33. A transverse rib 36 adjacent the upper wall of the casing extends along part of the withdrawal opening and, in co-operation with a lower transverse rib 38, retains the stack inside the casing whilst permitting the upper edge of the foremost tickets to be manually gripped. A projection 45, Figs. 1 and 3, of the slide 32 extends through a slot 44 in the top of the casing 30 and as the slide 32 moves forward it engages a V-shaped member 55 which is thereby moved against spring pressure. The member 55 is attached to a spring 54 which moves forwardly a rod 47 carrying an indicator 51 to signal that the stack of tickets is nearly exhausted. The slide 32 can be retained at the rear of the casing 30 by a catch 39 when the casing is being filled. A rod 48 may be moved against the pressure of a spring so that a member 49 carried thereby is rocked to abut the ticket stack.
Patent GB-693767-A (GB)
Abstract: 693,767. Animal feeders. BAILDHAM, E. Dec. 18, 1951 [Sept. 19, 1950], No. 22923/50. Class 5(ii) Animal feeding-teats project from an annular trough 6b. Openings in the trough are in register with nozzle passages in lugs 7. The teats 8 are retained by rings 11 on bulbous members, connected to the lugs 7 by threaded bushes 9. The flat central portion 6a of the trough is supported by angle bars 13 which at the base are bent outwardly and of a length to prevent tilting. Each bar may be in two parts, adjustably secured together and with inturned ends 12b supporting a heater 16 enclosed in netting 17.
Patent GB-2030111-A (GB)
Title: Display cartons
IPC: B65D5/42
Filed: 1978-09-18
Abstract: A carton blank comprises a substantially rectangular, main body portion (1) and four pairs of opposed flaps (2-5) hinged thereto, a third panel 1E being narrower than a first panel 1C, so that the erected carton produces the effect of a "false" base. The carton is preferably supported by the lower edges of the flaps 2, 3 which depend from the base 1F so that the carton can stand on a plane surface, with the base spaced above the surface and aligned with the bottom edge of a window 14. A backing card 15 may be glued to the back of the carton. <IMAGE>