baber/WOPTO huggingface dataset:
Patent GB-1285380-A (GB)
Title: Improvements in and relating to ceramic compositions
Inventor: MATSUOKA MICHIO
IPC: H01C7/112
Filed: 1969-10-22
Abstract: 1285380 Ceramics MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 22 Oct 1969 [8 Nov 1968] 51695/69 Heading C1J A ceramic composition consists essentially (defined) of ZnO and 0À05-10 mole per cent of BaO. In addition, 0À05-8 mole per cent of CaO, CoO, PbO or SrO can be present; or 0À05-8 mole per cent of Bi 2 O 3  and 0À05-8 mole per cent of either SrO or PbO; or 0À05-8 mole per cent of PbO with 0À05-8 mole per cent. of either SrO or CoO.
Patent GB-1278386-A (GB)
Title: Shaft seal with expandable outer periphery
IPC: F16J15/32
Filed: 1970-11-02
Abstract: 1278386 Rotary shaft seals; bearings FEDERAL-MOGUL CORP 2 Nov 1970 [1 Feb 1970] 51945/70 Headings F2A and F2B A rotary shaft seal having an expandable outer periphery comprises a casing 32 formed with a cylindrical portion 37 and a flange 38 supporting a shaft-engaging sealing lip 33, a flexible gasket 35 which extends axially beyond and is supported by the cylindrical portion of the casing, and a rigid ring 36 which is axially movable towards the flange of the casing to force the gasket to flex outwardly into a boresealing position. In the axle bearing shown, the rigid ring 36 is moved into engagement with the flange 38 of the casing 32 by a plate 23, the thrust being transmitted to a thrust-ring 22 for the outer race 16 through the seal. If desired the rigid ring may be integral with the thrust ring. The casing 32 is made of metal and is a slip-fit within the bore 15 of the axle tube 11. The rigid ring 36 may be made of plastics or metal and formed with a step 47 for compressing the gasket against the free end of the casing. In Figs. 6 and 7 (not shown), the rigid ring of steel is formed with a recess (61), instead of a step, which only serves to retain the flexible gasket (64) in the initial position of the rigid ring; to form the bore-seal, the rigid ring is forced towards the flange of the casing to cause the gasket to spring out of its recess and be compressed in the annular space between the bore and the rigid ring. In Figs. 8 and 9 (not shown), the rigid ring is tapered instead of stepped so that the gasket (35) wedges into its bore-sealing position. In another embodiment in which the seal is self-retaining, Fig. 11 (not shown), the rigid ring is again tapered but the gasket (88) is forced into a groove (84) in the bore as it is compressed by the wedging action.
Patent GB-1288438-A (GB)
IPC: C12N11/04
Filed: 1970-11-02
Abstract: 1288438 L - Asparaginase compositions MERCK & CO Inc 2 Nov 1970 [3 Nov 1969] 52036/70 Headings C3H and C3P A composition comprising L-asparaginase entrapped in a matrix of a synthetic resin gel, preferably a copolymer of acrylamide and N,N<SP>1</SP>- methylene bis acrylamide, may be used in the treatment of leukaemia and lymphomas. The polymer is preferably polymerizable in aqueous solution and capable of forming a highly crosslinked lattice, e.g. dextrans, poly-amino acids, caprolactam polymers, polyacrylic acid and regenerated cellulose. In the examples acrylamide and N,N<SP>1</SP>- methylene-bis-acrylamide are copolymerized in the presence of L-asparaginase in aqueous solution by photochemical activation in the presence of riboflavin and/or by use of free radical initiators such as ammonium persulphate, in presence of tetramethylethylenediamine.
Patent GB-1416986-A (GB)
Title: Boats
IPC: B63B7/04
Filed: 1971-11-10
Abstract: 1416986 Boats LEIGH & VALE PRODUCTS Ltd 9 Feb 1973 [10 Nov 1971] 52121/71 Heading B7A A plastics boat is made in two detachable halves 12 which are individually watertight so that jointing problems are avoided and which can be used to form a container for carriage on the roof rack of a car. When forming a boat, the two halves are held together by pins 34 which engage bores 36 in projections 28 to hold them in recesses 39. The pins also hold a seat 41 in place. Another seat 24 can be located by engagement with longitudinal buoyancy chambers 21. A duckboard may be formed of slats 27 joined to flexible strips 26 so that the duckboard can be rolled up. One of the halves may be provided with external buoyancy chambers joined by a board 47 (Fig. 8) for supporting an outboard motor. When forming the container, the boat halves are secured together by padlocked pins. Fig. 7 (not shown), which engage rings 53. The boat halves are formed with external grooves which, when the container is used on a car, are engaged by roof rack bars 56 and securing cords 57.
Patent GB-1106359-A (GB)
Title: Flow regulating valve
IPC: G05D7/01
Filed: 1966-11-23
Abstract: 1,106,359. Valves. DELTROL CORPORATION. 23 Nov., 1966 [1 June, 1966], No. 52385/66. Heading F2V. A flow regulating valve comprises a stationary closed-ended sleeve 13 in which slides a spring-loaded metering plunger 12 having a skirt 18 which obturates ports 17 to a degree determined by the pressure drop created by fluid flow through control orifice 23, the lefthand end of the plunger being movable beyond the open end of sleeve 13 into engagement with abutment plug 26 to permit free back flow of fluid via ports 17, 22 and 27. Stem 32 is adjustable relative to by-pass port 29 to adjust the flow rate of the valve.
Patent GB-1369032-A (GB)
Title: Process for the production of pyridine bases
IPC: C07D213/14
Filed: 1971-11-11
Abstract: 1369032 Pyridine and alkyl pyridines NIPPON STEEL CHEMICAL CO Ltd 11 Nov 1971 52448/71 Heading C2C The invention comprises a process for preparing pyridines (e.g. pyridine, α and # picoline, 2-methyl-5-ethyl pyridine) by reaction of paraldehyde with copper in the cupric state in aqueous ammonia and recovering the product. The reaction is preferably carried out under pressure (e.g. 20-200 kg./cm.<SP>2</SP>) and at elevated temperature (e.g. 200-280‹ C.) and may be performed in the presence or absence of oxygen or a free oxygen containing gas. Specified copper compounds are cupric formate, acetate and oxalate, fluoride, chloride bromide, sulphate, nitrate phosphate and carbonate. Cuprous compounds may be used, in the presence of oxygen, since they are then oxidized to Cu<SP>++</SP>. The preferred copper compound is cuprous acetate. The reaction may be carried out in a single homogeneous phase, if methanol or ethanol is added. Trioxane may also be added to the reaction mixture when it varies the ratio of products formed. The invention also includes the use of paraldehyde as the extractant by which products are recovered from the reaction mixture the aqueous raffinate from which extraction may be recycled to the reaction.
Patent GB-1486935-A (GB)
Title: Process and apparatus for dyeing a continuously moving filament
IPC: D06P7/00
Filed: 1974-12-05
Abstract: The man-made continuous filament fibre, preferably polyester fibre, is continuously passed through a dyeing liquor during which it is expedient for one or more hydrotropic chemicals to be applied separately or together with the dyeing solution. After the excess liquor has been removed, the man-made continuous filament fibre is passed through a preliminary fixing zone and a final fixing zone and a false twisting device. During its passage through the dyeing liquor and preliminary fixing device, the man-made continuous filament fibre is subjected to an additional drawing by 2 to 6%. <IMAGE>
Patent GB-1089963-A (GB)
Title: Baling press
IPC: B30B9/30
Filed: 1964-12-29
Abstract: 1,089,963. Baling presses. LIMEHOUSE PAPERBOARD MILLS Ltd., and T. WALKER. Dec. 29, 1965 [Dec. 29, 1964], No. 52638/64. Heading B5F. A container 20 for material to be baled is moved by a pneumatic cylinder 14 from a loading position shown dotted in Fig. 2 (not shown) to a pressing position under a pneumatically operated pressing platen 7. The container 20 is filled from above and emptied through a door 22 in one side, this door beng held closed by eccentrics 25 movable by a handle 27. The container is resiliently mounted on wheels 17 running on trackways 12, springs 19 allowing the container to move downwardly under baling pressure to abut a stationary part 11 of the press. Safety means ensures that the cylinder 14 cannot be operated unless the platen 7 is clear of the container 20 and that the platen 7 cannot be depressed until the container 20 is in its pressing position.
Patent GB-1303017-A (GB)
IPC: C08G65/00
Filed: 1971-11-12
Abstract: 1303017 Polyphenylene oxides JAPAN SYNTHETIC RUBBER CO Ltd 12 Nov 1971  [12 Nov 1970] 52641/71 Heading C3R [Also in Division B1] Polyphenylene oxides are obtained by reacting 2,6-disubstituted phenols with elemental oxygen in the presence of a three-component catalyst consisting of cupric sulphide, an amine and a metal salt (other than a cuprous salt) soluble in the amine. In examples polymers are obtained from 2,6-xylenol, the catalyst being cupric sulphide, pyridine or dimethylamine as the amine and manganous chloride, cupric chloride, cobalt chloride, zinc chloride, manganous bromide or manganous acetate as the metal salt. Other phenols and catalyst components are mentioned.
Patent GB-1447380-A (GB)
Title: Apparatus for the epitaxial growth of material from the liquid phase
IPC: H01L47/02
Filed: 1973-11-15
Abstract: 1447380 Epitaxial growth on a substrate INTERNATIONAL BUSINESS MACHINES CORP 15 Nov 1973 [20 Nov 1972] 52957/73 Heading BIS  Apparatus for the epitaxial growth of a material on a substrate from two solutions comprises a chamber rotatable about a shaft means for supporting a substrate within the chamber e.g. on a lid, and a wall within the chamber defining a treatment zone around the substrate supported in the chamber and serving to separate the two solutions from one another. The wall is arranged so that in operation of the chamber by rotation about the shaft, one of the solutions is constrained within the treatment zone at a first angular position, the other solution is constrained within the chamber at a second angular position and no solution is constrained within the treatment zone at a third angular position. A ridge formed on the interior of the chamber and extending parallel to the shaft may be provided to assist wetting of a plurality of substrates as the chamber is rotated. The axial shaft may be hollow to allow the passage of gaseous substances. Several internal arrangements for the wall are described. In the figure shown the representation has the cylinder rolled out into the plane of the drawing i.e. the front face 7 and end face 8 of the cylindrical chamber appears in the drawing as vertical straight lines on the left and right side respectively. The two solutions 'A' and 'B' are arranged so that 'A' can wet substrate 4 in zone 9 while at the same time solution 'B', separated from the solution 'A' is in an open channel 10. After completion of a revolution both solutions are exchanged so that solution 'B' contacts the substrate whilst solution 'A' is in channel 10. Separation walls 12, 13 extend radially to a height of about one third the diameter of the the cylinder and confine zone 9. Although walls 14 and 15, are shown centrally disposed they could be offset. The channel 10 which penetrates wall 13 has its mouth arranged above transverse rim 6. The thickness of the layer deposited is determined by the rate of revolution of the chamber. Specified 'A' solutions are gallium with minor amounts of Al and Te dissolved in GaAs and GaP dissolved in Ga and doped with sulphur. Specified 'B' solutions are Ga mixed with Al and Te in different proportions to the 'A' solution above dissolved in GaAs and GaP in Ga doped with zinc. Exemplified substrates are (III)-orientated GaP and (III)-oriented GaAs.
Patent GB-1294116-A (GB)
Title: Method of surface treatment
Inventor: LIDEL DARREL DEAN
IPC: C08F283/00
Filed: 1969-10-30
Abstract: 1294116 Treating films EASTMAN KODAK CO 30 Oct 1969 [1 Nov 1968] 53148/69 Heading B5B [Also in Divisions C3 D1 and G2] The surfaces of polymer films are modified by passing a reactive gas through a radio frequency electromagnetic field to form free radicals and treating the surfaces with the gas at a pressure of 0À01 to 20 mm. Hg, or by passing an activating gas through said field to activate it, mixing the activated gas with a reactive gas to form free radicals and treating the surfaces with the gas mixture at a pressure of 0À01 to 20 mm. Hg. The polymer may be a polyolefin, polyvinyl chloride, ABS polymer, polyamide, polyester, polycarbonate or polyurethane; and may be treated with nitrogen trioxide, nitric oxide, nitrogen dioxide or water vapour, or with an organic acid, alcohol, amine, nitrile or ester which has been activated with nitrogen or a noble gas. The process may be used to render photographic film supports hydrophilic, and apparatus suitable for carrying out the invention is described and illustrated. Examples describe the treatment of biaxially oriented polyethylene terephthalate film with (1 and 12) nitrogen dioxide, (5) nitrogen trioxide, (8) helium and mercaptopropionic acid, (9) helium and nitrosyl chloride, (11) nitrogen and 2-acetoacetoxyethyl methacrylate, (13) helium and nitrogen dioxide, (14) helium and water, (16) helium and acrylic acid, (17) helium and 3-aminopropanol, (18) argon and mercaptopropionic acid, (19) helium and acrylonitrile and (20) helium and methanol; polycarbonate film with (2) nitrogen dioxide, (6) nitrogen trioxide and (10) helium and mercaptopropionic acid; polyethylene coated paper with (3 and 28) nitrogen dioxide, (7) nitrogen trioxide and (29) helium and nitrogen dioxide; and biaxially oriented poly(cyclohexane dimethanol terephthalate) with (4) nitrogen dioxide.
Patent GB-1368638-A (GB)
Title: Airfoil web dryer
IPC: B41F23/04
Filed: 1971-11-16
Abstract: 1368638 Airfoil web dryer OVERLY Inc 16 Nov 1971 [16 Nov 1970 26 Aug 1971] 53220/71 Heading F4G  One or more airfoil nozzles 4 are disposed on at least one side of a moving web 1 (as in Specification 1,291,583) and each nozzle 4 comprises a flat surface 9 following the slot 7 to cause turbulent flow of air in the space 12, the heated air being discharged from the slot 7 at a velocity not less than 3,300 (e.g. 15,000) feet per minute, the length of the flat surface 9 in the direction of air flow, (which is equal to the spacing between surface 9 and web 1) and the width of the nozzle slot 7 being in the ratio range 40-100 (e.g. 60 or 65), and the Reynolds number in the turbulent space 12 being in the range 4000 to 10,000. Each nozzle 4 terminates in a sharp edge 13 to reduce the Coanda effect. Each nozzle 4 is supplied with air by a central duct 6, and has closed ends. The width of the slot is between 0À04 and 0À125 inch, preferably more than 0À06 inch.
Patent GB-1326417-A (GB)
Title: Electron beam storage tube systems
IPC: H01J29/39
Filed: 1970-11-10
Abstract: 1326417 Cathode ray storage tubes WESTERN ELECTRIC CO Inc 10 Nov 1970 [10 Nov 1969] 53354/70 Heading H1D The target of a cathode ray storage tube comprises an insulating grid formed on the surface of a semi-conductor substrate. The substrate is preferably silicon and the grid may be of silicon dioxide and comprise at least 1500 lines per inch, the lines being less than 5 microns thick. In one example the grid has 2500 lines per inch each 2 microns thick, with a resulting transparency of 64%. The target may be made by steam oxidizing a silicon wafer to form an oxide coating 0À5 microns thick and etching the oxide by a photolithographic process. Charges are stored on the target by scanning it with a modulated beam, and read by scanning the target with an unmodulated beam, the output being derived either from the substrate or from a return beam.
Patent GB-1488898-A (GB)
Title: Azo dyes
IPC: C10M171/00
Filed: 1974-12-11
Abstract: 1488898 Azo dyestuffs BASF AG 11 Dec 1974 [12 Dec 1973 20 March 1974 16 July 1974] 53513/74 Headings C4P G5G and C5W Novel azo dyes having the formula (where D is phenyl which may be substituted by one or two groups from C 1-4  alkyl, methoxy, ethoxy, phenylazo and phenylazo substituted by one or two groups from C 1-4  alkyl, methoxy or ethoxy; R<SP>3</SP> is C 4-21  alkyl optionally interrupted by oxygen, phenyl-C 1-4  alkyl, mono- or bicyclo C 6-8  alkyl optionally substituted by C 1-4  alkyl, or phenyl optionally substituted by C 1-4  alkyl; the group -NHR<SP>3</SP> is ortho to the azo group) are prepared by diazotization and coupling. The dyes may be in the form of mixtures and the coupling components are advantageously dissolved in an aromatic hydrocarbon, such as toluene or xylene, to obtain a ready-to-use dye solution. The dyes and dye mixtures which are normally red oils, waxy substances or powders, are used to colour fuels, fuel oils, surface coatings, waxes and fats. The dyestuffs of Specification 1,394,018 are disclaimed.
Patent GB-1415346-A (GB)
Title: Apparatus for and methods of spraying
IPC: B05B5/03
Filed: 1972-11-20
Abstract: 1415346 Spray producers; coating apparatus RANSBURG CORP 20 Nov 1972 [18 Nov 1971] 53592/72 Headings B2F and B2L A powder spray gun permitting rapid change from spraying one coating material to another has a barrel 11 having an open-sided channel 18 in the side of the barrel and extending the length thereof, the channel being adapted to receive and retain a feed tube 20 connected to a reservoir of material to be sprayed. The tube is resilient and is retained in the channel by means of tabs 21 and 22 and a member 20b, Each reservoir (13), Figure 1 (not shown), includes a foraminous sheet through which compressed air permeates to fluidize powder therein, and the fluidized powder is delivered to the gun via a venturi pump (36). The reservoirs (13) are provided with devices (88), Fig. 5 (not shown), for retaining the feed tubes when not in use, each tube when retained by such a device deactivates the respective reservoir, and removal of a tube from the device for insertion into the spray gun activates the respective reservoir. Th nozzle assembly 38 of the gun is coated with an electrically-conductive material for electrostatic spraying, the electrical supply and fluidized powder supply to the gun being controlled by a trigger 43. The spray pattern is controlled by means of a fixed deflector (48), Figure 3 (not shown), and tangential jets of compressed air forming a whirling discharge, the intensity of the jets being controlled by a needle valve (67). The nozzle assembly may also be provided with a rotating powder-distributing means (not shown). A trigger controls the supply of powder and the supply of high voltage.
Patent GB-1277157-A (GB)
Title: Production of carboxylic acids
Inventor: WASHECHECK PAUL H
IPC: C07C51/285
Filed: 1970-11-12
Abstract: 1277157 Carboxylic acids CONTINENTAL OIL CO 12 Nov 1970 [12 Nov 1969] 53910/70 Heading C2C Carboxylic acids are prepared by reacting an olefinic hydrocarbon with a peracid in the presence of a catalytic quantity of ruthenium metal or a ruthenium containing compound whereby the olefin is oxidized with cleavage of the olefin at the point of unsaturation. In the example heptanoic acid was produced from oct-1-ene or tetradec-7-ene.
Patent GB-1374422-A (GB)
Title: Method and apparatus for the manufacture of heat exchanger elements
IPC: H05B3/06
Filed: 1970-11-13
Abstract: 1374422 Heat exchanger element COVRAD Ltd 11 Feb 1972 [13 Nov 1970] 54063/70 Heading B3A A method of manufacturing a heat exchanger element of the kind comprising a tube 10, Fig. 1, through which a fluid from or to which heat is to be transferred is to be passed, the tube having either an external helical heat-transmitting surface formed thereon by winding a coil of wire helically around the outside of the tube, or an internal helical heat-transmitting surface formed thereon by winding a coil of wire helically around a former which together with the coil of wire is insertable in the tube, the coil of wire fitting closely within the tube comprises winding a coil 18 of wire substantially helically onto the metal tube or former 10, and passing an electrical current through the tube or former to heat it resistively so as to bond the wire coil to the tube or former. The coil may also include a binding wire, 24, e.g. of copper, which is bonded to the wire coil by electrical resistance heating or soldering, and accordingly bonding wires of solder may be included. The wire coil is wound from spool 16 onto a mandrel 12 around bonding wires 22 and binding wires 24 supplied from spools 20. The wires are then wound onto the rotating tube, which is, e.g. copper, aluminium or steel. Both the tube 10 and arm 14 rotate and the wire is continuously drawn off the spools. After the winding process is finished the opposite ends of tube 10 are clamped in clamps 26, Fig. 3, and connected to low voltage, low frequency electrical supply (28), Fig. 2 (not shown). The clamps are preferably heated by elements (30) when the mains supply is energized, thus melting the,solder wire 22 to bond the wires to the tube. The clamp 26, which is adjustable by using removable inserts 46 of high thermal and/ or electrical conductivity, preferably copper, comprises a fixed clamping member 40 and a movable member 42 to grip tubes of various sizes in an aperture 50, the surface thereof being sprayed with a solder-resistant coating, e.g. titanium. Member 42 is pivoted about a pin 54 and can move under action from a pneumatic cylinder 62 as far as stop 66. Modifications include the use of metal inserts and wires 18, 24 of metals other than copper, and the preheating may be effected by a hot fluid, e.g. steam. In some applications the wire coil 18 may be bonded onto tube 10 by electrical resistance welding. Also, D.C. current may be utilized for the heating instead of low frequency A.C.
Patent GB-1263816-A (GB)
Title: Improvements in combustion chamber for a rocket propulsion unit
IPC: F02K9/64
Filed: 1969-11-05
Abstract: 1,263,816. Combustion chambers for rocket engines. MESSERSCHMITT-BOLKOW BLOHM G.m.b.H. Nov. 5, 1969 [Nov. 16, 1968], No. 54253/69. Headings F1J and F1L. The invention relates to a combustion chamber for a rocket propulsion engine in which a number of auxiliary or pre-combustion chambers are disposed within the main combustion chamber, fuel and a portion of the oxidiser being supplied to the auxiliary chambers so that stoichiometric combustion occurs therein. The combustion chamber shown in Figs. 1 and 2 is of annular form comprising an outer wall 2a, an inner wall 2b and an upstream end wall 3, the chamber being disposed within an outer housing 1. A series of auxiliary combustion chambers 4 are mounted within the main chamber each formed of radial and circumferential walls 4a. A fuel injector 5 projects into each chamber 4 the fuel-flow being indicated at B. Oxidiser is supplied into each chamber 4 through openings 6 as indicated by arrows SP and stoichiometric combustion takes place in the chamber 4. Further oxidiser is supplied through ducts 7 formed in the walls 4a of the auxiliary chambers as indicated by arrows SK, this oxidiser effecting cooling of the walls 4a and forming with the gases from the auxiliary chambers an oxygen-rich mixture in the main chamber 2. A turbine 8 is driven by the gas and oxidiser mixture, see Fig. 5. In Figs. 3 and 4 (not shown), the auxiliary combustion chamber is of annular form being formed by inner and outer annular walls (9), (10). Oxidiser enters the auxiliary chamber through arcuate slots (11) formed in the wall 3 around the nozzles 5. Further oxidiser enters through openings 12, 13 in the end wall 3 and inner and outer walls 2b, 2a the oxidiser being directed against the outer surfaces of the auxiliary chamber walls 9, 10, as indicated by arrows SK.