baber/WOPTO huggingface dataset:
Patent GB-989250-A (GB)
Title: Chemical nickel plating of magnesium and its alloys
IPC: C23C18/36
Filed: 1962-11-08
Abstract: An aqueous chemical nickel plating bath for coating magnesium and its alloys comprises nickel ions, 0.15-1.2 mols/1. hypophosphate ions, the ratio between nickel ions and hypophosphate ions being 0.25 : 1.6, sufficient complexing agent to complex all the nickel, 0.1-0.4 mols/1. of fluoride ions, sufficient hydroxyl ions to produce a pH of 7-9 and a buffering system comprising alkali metal cations and boron oxide anions equivalent to 0.05-0.2 mols/1. of alkali metal tetraborate.  The complexing agent preferably comprises 0.08-0..12 mols/1. of an aliphatic aminocarboxylic acid or salt and 0.06-0.1 mols/1. of a hydroxycarboxylic acid or salt.  The solution also preferably contains 0.05-0.2 mols/1. ammonium ions and also 30-150 p.p.m. of AsO4 anions. The nickel ions may be derived from the hypophosphate, acetate, sulphate or carbonate of nickel, the hydroxide preferably from NaOH, the ammonium and fluoride ions preferably from ammonium bifluoride and the boron oxide from H3BO3, H2B4O7, Na3BO3 or Na2B4O7.  The magnesium or alloy surface is cleaned, pickled first in an aqueous solution containing chromic oxide, nitric acid and hydrofluoric acid, second in an aqueous solution of hydrofluoric acid and finally in an aqueous solution of sodium hydroxide to form a protective film of magnesium fluoride-magnesium hydroxide.  The treated surface is then coated in the nickel plating bath and finally heated at 400 DEG F. Optionally the coating may be formed by treating with the plating bath of the invention and then finally coating in an acid nickel plating bath with a pH of 4-6.  Specification 821,763 is referred to.
Patent GB-975041-A (GB)
Title: An improved apparatus for treatment of sewage
IPC: B03B9/06
Filed: 1964-11-08
Abstract: 975,041. Centrifugal separators. GOODENOUGH PUMPS Ltd., P. J. THACKRAY, and D. E. LAWRANCE. Nov. 6,1963 [Nov. 8, 1962], No. 42287/62. Heading B2P. A centrifuge for separating the liquid and solid components of sewage comprises a rotary bowl 11 having around its upper edge a perforated lip 10 extending substantially radially inwardly of the bowl, the latter being rotated, e.g. through belt and pulley 24, 23, by means of an electric motor 25 so that, as the sewage is fed to the bowl by an inlet pipe 29, the solid components are separated by centrifugal force and accumulate below the lip on to .the wall of the bowl as a removable compact annular cake, while the liquid components are caused to flow axially of the bowl and over the weir formed by the lip, a proportion of the liquid flowing through the perforations in the lip in order to prevent, or reduce the amount of, liquid accumulating in the cake and remaining in the bowl after centrifugation. The bowl is provided with a removable lining 16 in the form of a hessian bag which is held at its upper edge by pins 8 and clips 9 and is clamped at its centre to the boss of a conical retaining member 7 held in position by a wing nut 6 on to a central conical boss 12 in the bottom of the bowl. Vanes 5 are attached to the member 7 for agitating the sewage as it is fed into the bowl. The bowl is surrounded by a housing 26 closed by a hinged lid 28 and provided with a side outlet 34. The housing is resiliently suspended from pedestals 37 by spring-loaded rods 36. A tubular perforated ring 31 supplies compressed air into the housing. A brake band 38 is mounted on the bowl spindle 17 and may be stretched to stop the bowl by a roller 41 rotated by a lever 42 connected by an arm 43 to a shaft 44 to which a handle 45 is secured. Linkage may be provided to prevent the lid 28 being opened while the brake is off. In operation, the liquid is thrown into the space between the housing and the bowl as a fine spray which is aerated by the air from ring 31 and the liquid is discharged through outlet 34 to a contact tank in which the liquid is purified by contact with the air and may then be passed in the centrifuge a second time to remove solid material produced as a result of aeration. When the accumulated solid mass has nearly reached the edge of the weir, the centrifuge is stopped, the lip 10 removed and the lining with the solids is removed and a new lining fitted. The centrifuge may be used in conjunction with a balance tank for intermittent operation.
Patent GB-1522168-A (GB)
Title: Valve silencers
IPC: G10K11/16
Filed: 1975-10-16
Abstract: 1522168 High-pressure steam silencer arrangement BABCOCK & WILCOX Ltd 16 Oct 1975 [16 Oct 1974] 42469/75 Heading F1B A silencer arrangement for a steam plant includes a closed loop duct 1, having a plurality of outlets 3 each with a silencer 2, and a plurality of steam inlets 4 from safety valves. Each silencer has a casing 5 and an outlet 6 with baffles 6a, and an internal steel section 7 supported by an inverted U-section of sound absorbing material to present a labyrinthine path to escaping steam.
Patent GB-1432926-A (GB)
Title: Process for isomerization of 2-methyl-3-butenenitrile to linear 3-pentenenitrile
IPC: B01J31/18
Filed: 1974-10-01
Abstract: 1432926 Isomerization of 2-methyl-3-butenenitrile to 3-pentenenitrile E I DU PONT DE NEMOURS & CO 1 Oct 1974 [2 Oct 1973] 42497/74 Heading C2C 2-Methyl-3-butenenitrile (I) is isomerized to produce 3-pentenenitrile by contacting I at 0-200 C. with a catalyst comprising either a zero valent nickel compound Ni(PXYZ) 4  or a #-allyl nickel compound where PXYZ is a sigma-pi bonding ligand in which X is OR and Y and Z are R or OR and R is an alkyl or aryl radical of up to 18 carbon atoms and in the #-allyl compound the R radicals are so chosen that the ligand has a cone angle of 130-170 degrees, and M is 1-2, I and the catalyst being contacted, before and/or during the isomerization, with an activated crystalline metal alumino-silicato zeolite molecular sieve having substantially uniform pore diameters in the range of about 3 to 13. The molecular sieve may have the formula M 21n O : Al 2 O 3  : xSiO 2  : yH 2 O, where M is an alkali or alkaline earthmetal, n is the valence of M, x is about 2-2À5 and y is 0-10; types 3A, 4A, 5A, 10X and 13X sieves may be used. Suitable ligands in Ni(PXYZ) 4  include triphenyl phosphite, tri-m-tolyl phosphite, tri-ptolyl phosphite, a mixed tri(m and p-tolyl phosphite) (exemplified) or tri-(m and p-methoxyphenyl) phosphite; suitable ligands in the #-allyl compound include tri-o-tolyl phosphite, tri-(2,5-xylyl) phosphite, tri-(2,4-xylyl) phosphite, tri-(o-phenylphenyl) phosphite, di-o-tolyl phenyl phosphonite, diphenyl phenyl phosphonite and phenyl diphenyl phosphinite. An excess of ligand over that present in the complex is preferably present. In the Examples I and catalyst were passed through a bed of activated type 4A crystalline zeolite molecular sieve before entering the reactor.
Patent GB-918968-A (GB)
Title: Anthraquinone dyestuffs containing isothiocyanate groups
IPC: C09B62/80
Filed: 1960-12-13
Abstract: The invention comprises anthraquinone dyes of formulae:-<FORM:0918968/IV (b)/1> wherein R and R1 represent alkyl radicals containing 1-4 carbon atoms and R2 stands for a hydrogen atom or an alkyl radical containing 1-4 carbon atoms.  They are prepared by reacting the corresponding amino-substituted dyes with thiophosgene in aqueous and/or organic medium.  The dyes may be used to colour wool, polyamide and polyurethane fibres in blue shades. The dyes may also be used to colour cellulose fibres in conjunction with acid-binding agents.  Examples of the preparation of the dyes and dyeing processes are specified. Specifications 422,930 and 896,590 are referred to.  Reference has been directed by the Comptroller to Specification 896,590.
Patent GB-1091914-A (GB)
Title: Improvements in or relating to lead-through terminations
Inventor: FISHMAN DENIS
IPC: H01R4/20
Filed: 1964-10-23
Abstract: 1,091,914. Terminals. STANDARD TELEPHONES & CABLES Ltd. Oct. 23, 1964, No. 43308/64. Heading H2E. A lead-through terminatior for a device enclosed in a casing comprises a tube 2 which is sealed into the casing 3 and is of an alloy of copper and zirco nium, and a lead 4 from the device secured in the tube by crimping. The tube may have an extension 1 of its lower enc formed of a nickel iron alloy to facilitate its sealing into a glass casing. An external lead 6 may be crimped in the upper end of the tube, or the latter may be formed into a perforated lug or solid boss, or it may receive a steel boss.
Patent GB-1507865-A (GB)
Title: Projectiles
IPC: F42B15/00
Filed: 1975-10-22
Abstract: The artillery round has a chamber with a propellent body (9), which chamber has at least one gas outlet (8) in its base (6). The burning area of the propellent body and the outlet cross-sectional area are matched to one another in such a manner that the combustion pressure is less than 10 bar and exceeds the pressure prevailing at the base of the round by at most 0.5 bar. On the other hand, the propellent body is dimensioned such that it produces combustion gases over a considerable portion of the flying time. Such a construction results in the base suction being considerably reduced, as a result of which the range of the round can be considerably increased and the scatter considerably reduced. This construction is particularly suitable for shells. <IMAGE>
Patent GB-1032429-A (GB)
Title: Improvements in or relating to gripping heads for bottles or the like
IPC: B65B21/18
Filed: 1963-11-04
Abstract: 1,032,429. Grippers for crating bottles. E. P. REMY & CIE. Nov. 4, 1963 [Nov. 7, 1962; Feb. 8, 1963], No. 43433/63. Heading B8H. A bottle neck is gripped by a toroidal spring 15, Fig. 1, which is forced inwards by the descent of a hollow piston 12, depressed by cam members 26a, 26b, operated by a handle 28. As the gripper assembly is lowered on to a group of bottles a spring loaded ring 18 engages the bottle body and aligns it with the gripper. The ring 18 also prevents the bottles from swinging as they are transferred to or from a crate. To accommodate different sized bottles, cylinders 11 of various sizes may be provided. In a second embodiment, Fig. 2, the gripping head 1 comprises cylindrical member 6 and a square mesh grid 30 with vertical fingers 31. The fingers may be attached to either the sides, Fig. 3, or the corners, Fig. 6, of the grid 30. The lower ends 31<SP>1</SP>, Fig. 8, of the fingers may incline inwardly or turn outwards as at 32, Fig. 5. The fingers remain in the position shown in Fig. 2 until the bottles B have been gripped by the heads 6 and transferred to a position above a crate C, Fig. 8. The grid 30 is lowered so that the fingers converge inwards as shown, thereby opening any spaces in the crate which have been distorted and guiding the bottles into them as the gripping heads move down. To obtain this movement automatically the grid is mounted on a shank 33, Fig. 10, supported on a contoured rail 34 by a roller 34. Similarly, a roller 37 and rail 36 support the gripping heads. The toroidal spring 15 may be replaced by a rubber ring and springs 17, 20, Fig. 1, by other suitable springs.
Patent GB-1472700-A (GB)
Title: Guanidinobehzoic acid derivatives and process for preparing the same
IPC: C07C279/18
Filed: 1975-10-23
Abstract: 1472700 p-Guanidinobenzoic acid derivatives ONO PHARMACEUTICAL CO Ltd 23 Oct 1975 [1 Nov 1974 17 Dec 1974 27 May 1975] 43495/75 Heading C2C Compounds of the general formula  where R<SP>1</SP> and R<SP>2</SP> are -H or C 1-3  alkyl and Z is a direct bond or is -CH 2 -, -CH 2 CH 2 - or -CH = CH- are prepared by reacting an ester of formula  with an acid halide of formula in an organic solvent such as THF, diethylether, benzene, toluene or pyridine and usually in the presence of an organic amine such as Et 3 N, Bu 3 N, dimethylaniline or pyridine. The hydrogen halide addition compounds thus obtained can be converted to the carbonate salts by reaction with aqueous NaHCO 3  and the carbonate salt may be reacted with HCl, H 2 SO 4 , HBr, H 3 PO 4 , HNO 3 , acetic, oxalic, lactic, maleic, fumaric, malic, tartaric, citric, ascorbic, C 6 H 5 SO 3 H, CH 3 C 6 H 4 SO 3 H or CH 3 SO 3 H acids to form the corresponding acid addition salts. The compounds and their acid addition salts have pharmaceutical properties. The compounds of formula (III) are prepared by reacting p-HO . C 6 H 4  . Z-COOH(IV) with X<SP>1</SP>-CH 2 CON(R<SP>1</SP>)(R<SP>2</SP>) where X<SP>1</SP> is halogen, in a molar ratio of 0À8 to 1À2 by heating at 60- 150‹ C. for 2-20 hours in a solvent such as acetonitrile, THF, benzene, toluene or dimethylformamide, the solvent being present in an amount of 500-2000% v/w based on compound (IV), in the presence of an organic base such as Et 3 N or Bu 3 N in an amount of 6-20% w/w based on compound (IV), at atmospheric pressure.
Patent GB-981476-A (GB)
Title: Gas turbine engine vane assembly
Inventor: BILL ARTHUR
IPC: B64C29/00
Filed: 1963-11-04
Abstract: 981,476. Gas turbine stator blade mounting; jet propulsion plant; axial flow compressors. ROLLS-ROYCE Ltd. Nov. 4, 1963, No. 43528/63. Headings F1C, F1J and FIT. A gas turbine engine vane assembly comprises two concentric substantially V-section annular parts the open ends of which face towards opposite sides of the assembly and each of which has a wall which is secured to a wall of the other V-section part, the other wall of each V-section part having angularly spaced slots therein through each of which extends the root portion of a vane, and means for securely mounting the root portion of each vane within the respective V-section part. A stator vane mounting assembly for a ducted fan gas turbine jet propulsion engine having two coaxial independent shafts, Fig. 2, comprises an annular support structure 26 carrying fan outlet guide vanes 25 and compressor inlet guide vanes 27 which are respectively also connected to the outer casing 11 and bearing support 30. Structure 26 is connected to the inner casing 12 and comprises two substantially V-section concentric annular members 33, 34, Fig. 4, which point respectively upstream and downstream. Wall 35 of member 33 is connected to wall 36 of member 34 and the members 33, 34 are also connected to axially spaced rings 43, 44. The fan outlet guide vanes 25 are mounted in slots 42 in the wall 41 of member 34 and retained by blocks 50, 51, Fig. 3. Each blade root 47 is stiffened by a sleeve 52 and a lip 53 on the sleeve supports fairing sections 54. The compressor inlet guide vanes 27 are similarly mounted in slots in wall 40 of member 33. The V-section members 33, 34 and guide vanes 25, 27 are formed of resin bonded or fibrous reinforced material and are cemented together. In a modification, the radially outer ends of the guide vanes 25 are also mounted in a V-section member attached to the casing 11.
Patent GB-1277664-A (GB)
Title: Torsional vibration damper
Inventor: DEURING HANS
IPC: F16D13/68
Filed: 1969-09-03
Abstract: 1277664 Universal joints GOETZEWERKE FRIEDRICH GOETZE AG 3 Sept 1969 [5 Sept 1968] 43569/69 Heading F2U  A vibration damper as in Specification 1,093,808 wherein the plates 8 thereof are replaced by parts 8 formed from stampings, Fig. 3, to a wedge-shape section. The metal parts 7, 8 may have blisters 24, 25. The ring 6, 7, 8 is centred in the housing 2, 3 by the lugs 9, 9<SP>1</SP>.
Patent GB-935909-A (GB)
Title: Filtration process
IPC: C13B20/12
Filed: 1959-12-24
Abstract: 935,909. Sand filters; gravity-separation apparatus. ROHM & HAAS CO. Dec. 24, 1959 [June 2, 1959], No. 43828/59. Class 46. During filtration of liquid introduced through an inlet (not shown) to a sand filter 1, the surface of the bed is raked (6) to break up any cake of solid material which may form thereon. Filtrate is pumped away at 10, 11. Initial, back-washing is effected by water introduced at 20 and passed along 17 and 10; the used backwash water passes at 12, 13 to a sedimentation tank 4 and thence either to a storage tank 3 or back to the filter at 17 for immediate re-use. After several circuits the backwash water may be discharged at 22 for recovery from it of dissolved solids from the filter bed (e.g., sugar, when sugar solution is being filtered). Stirrers 9 may be attached to the rake 6. Specification 935,910 is referred to.
Patent GB-1072487-A (GB)
Title: Improvements relating to colour television camera arrangements
Inventor: JAMES IVANHOE JOHN PENFOUND
IPC: G02B27/14
Filed: 1963-11-07
Abstract: 1,072,487. Colour television. ELECTRIC & MUSICAL INDUSTRIES Ltd'. Feb. 5, 1965 [Nov. 7, 1963], No. 43922/63. Addition to 1,051,065. Heading H4F. [Also in Division G2] A. multi-tube, colour television camera includes an optical system which cam be selectively switched to conform to Claim. 1 of the parent. Specification,. whereby the depth of focus of the image formed on the luminance tube is greater than that formed on the colour tube or tubes, or to conform to an optical system, such that the light applied to the different pick-up tubes emanates from the same effective aperture. In a first. arrangement, Fig. 2 (not shown), the incoming light,.following the main lens, is split between the luminance and colour tubes by means of a member having a first wholly transparent region with a small central reflective spot which determines the luminance aperture. The member is constructed in accordance with the invention.to;be slidable whereby the first region may be removed from the light path and replaced by a second semi-transparent region whereby the camera functions with a conventional optical system with the aperture for both luminance and colour tubes determined by the main lens. In a second arrangement, Fig. 3 (not shown), the member is arranged to be rotatable and has three sectors, two are transparent and have reflective spots of different size, so as to permit operation in accordance with the parent Specification, with a choice of luminance aperture, whilst the third is semi-transparent to permit conventional operation. Changes in signal amplitude which come about as a consequence of the switching of the optical system may be compensated by caus:ng movement of the optical element to switch gain-control arrangements in the signal amplifiers or to insert neutral density filters in the optical paths.
Patent GB-1441328-A (GB)
Title: Method for impartigng pressure sensitive adhesion to velvet type fasteners
IPC: C09J133/04
Filed: 1973-09-19
Abstract: 1441328 Coated fastener KANEBO Ltd 19 Sept 1973 [26 Sept 1972] 43981/73 Heading B2E A velvet type fastener composed of synthetic fibres has applied to the respective back surfaces of the male and female pieces thereof a composition consisting of 100 parts by weight of polymer containing at least 65% mol of an ester of acrylic acid or methacrylic acid and from 0.2-5 parts by weight of a glycidyl ester of unsaturated organic acid polymerized therewith, 0.5-5 parts by weight of a zirconyl salt of organic acid, and 0.01-0.1 parts by weight of a volatile acid addition salt of organic amine. The composition imparts pressuresensitive adhesion to the velvet type fastener which enables the. fastener to be secured easily and quickly to the material on which the fastener is used. Woven or knitted multifilament yarn fabrics of polyamides or polyesters may be used for the loop elements and the base fabric of the female piece, and woven or knitted fabrics of tensified polyethylene, polypropylene or polyvinyl chloride as well as the fabrics of polyamides or polyesters may be used for the 'base fabric of the male piece. For the male elements which may be in the hook form or in the laterally expanded cup form at the top end portion of the stem, monofilament yarn of polyamides, polypropylene, polyethylene, polyoxymethylene may be used. The polymer may be a copolymer of the acrylic or methacrylic ester with vinyl acetate, methyl methacrylate, styrene, acrylic acid, methacrylic acid, crotonic acid and itaconic acid. The glycidyl ester may be the glycidyl ester of acrylic, methacrylic or crotonic acid. Suitable zirconyl salts are zirconyl acetate, propionate, caprate, and stearate. Suitable volatile acid addition salts are salts of mono-, di- or triethanol amine or mono-, di- or tripropanol amine with hydrochloric acid or acetic acid. The adhesive composition may be coated on the male and female pieces by doctor coating, roll or spray coating, or alternatively the composition may be coated on to a release paper and after partial drying of the coated surface of the release paper is secured to the respective back surface of the two pieces of the velvet type fastener.
Patent GB-1217376-A (GB)
Title: An original document transport system for a photocopy machine
IPC: G03G15/28
Filed: 1968-09-17
Abstract: 1,217,376. Photo-copying machines. ICP Inc. Sept.17, 1968. [Sept.18, 1967], No.44127/68. Heading G2A. An original is passed into.a photo-copying machine from a platform 30, whence it passes along a path defined by various guides to an exit chute 32, and the whole of a sub-assembly forming one side of this path can be removed, giving open access to the path. As shown, from platform 30 the original sheet passes between rollers 33,34, guides 35, rollers 37,38, and then between guides 39,40 which reverse its direction by about 180 degrees, to the exposure station. Here it passes behind a transparent window 16 where it is  illuminated for exposure, and then passes between further rollers 43,44 and so along chute 32 to leave the machine. The whole of the inner part of this section, comprising platform 30, convex guide wall 40, and the upper wall of chute 32,  constitutes an integral unit, which can be pivoted anti-clockwise into the position of Fig.2 (not shown). The guide way for the original is thus completely opened up for access, to allow of inspection, maintenance, or clearance of a blockage. The exposure at station 16 is effected by light from a source 14, which is reflected from a mirror 15 to window 16, back again to mirror 15, and thence through a lens system 17 to a window 11 behind which passes light-sensitive paper 7. This is supplied from a roll 6, and after exposure passes through a processing bath 12 and, after cutting, is delivered to a receiving tray 13.
Patent GB-981810-A (GB)
Title: Improvements relating to the discharging of powders from hopper containers
Inventor: IRWIN ROLAND
IPC: B65D88/72
Filed: 1962-11-22
Abstract: 981,810. Pneumatic conveyers. YORKSHIRE ENGINEERING & WELDING CO. (BRADFORD) Ltd. Nov. 21, 1963 [Nov. 22, 1962], No. 44138/62. Heading B8A. In a storage hopper 3 for powder &c. which is adapted for fluidized discharge through the base 5 by the introduction of air through fluidizing panels 6 near the base, non-return valves 8 are provided in the upper part of the hopper to permit re-circulation of the air through further fluidizing panels 7 arranged in the corners or valley angles between the sloping walls 4 of the hopper. In the example the hopper 1 is mounted within a cylindrical shell 1 of a vehicle adapted for bulk transport, the shell providing a chamber 9 for recirculating the air. The fluidizing panels 6, 7 may be of generally triangular form with a common base line.
Patent GB-1394312-A (GB)
Title: Method of forming a tape reel hub by extrusion
IPC: B21C23/10
Filed: 1973-09-21
Abstract: 1394312 Making tape reel hubs; extruding dies ACROMETAL PRODUCTS Inc 21 Sept 1973 [22 Sept 1972] 44384/73 Headings B3A and B3P [Also in Division B8] A tape reel hub is made by hot extrusion of metal, e.g. aluminium, into an elongated tube which is subsequently severed into discrete hubs and machined. The extrusion is effected through a port-hole die composed of an outer female die 45, Fig. 4, and a mandrel 57 mounted on a male die provided with axially extending projections 65. The mandrel 57 has axially extending ridges (59), Fig. 6 (not shown), to form grooves 23 and the projections 65 form metal saving holes 33 in the hub. The severed-off hub from the extruded tube may be heat treated. The hub is then machined to form a lip 27, Fig. 2, so that tape holding plates (11), Fig. 1 (not shown), can be flush mounted, and anodized. The anodized hub may then be dyed black to produce a pleasant appearance.