baber/WOPTO huggingface dataset:
Patent GB-216006-A (GB)
Title: Improvements in cabinets, racks, stands and the like for storing gramophone disc records
IPC: A47B81/06
Filed: 1923-07-07
Abstract: 216,006. Chatwin, A., and Kingfisher, Ltd. July 7, 1923. Cabinets for storing gramophone records. A base block is built up from a number of similar strips e each having a concave recess f to receive the edge of a record and an inclined surface g, the strips being disposed alternately in opposite directions, so that adjacent records are withdrawn on opposite sides. The strips e are staggered in a horizontal direction, and a vertical partition strip h is secured in alignment with each strip at the end to which the inclined surface g is adjacent. The base block so formed is preferably embodied within a double-sided cabinet, which may be revolubly mounted and provided with doors. A bar l is secured along each face of the base block to conceal the edges of the strips and may carry a numbered indicator strip m.
Patent GB-348911-A (GB)
Title: Heat resisting glasses giving daylight effect
IPC: F21V11/00
Filed: 1930-06-06
Abstract: 348,911. Glass manufacture. CORNING GLASS WORKS, Walnut Street, Corning, New York, U.S.A.-(Assignees of Rising, W. H. ; 440, Pine Street, Painted Post, New York, U.S.A.) June 6, 1930, No. 17624. Convention date, Sept. 3, 1929. Addition to 312,310, [Class 56, Glass]. [Class 56.] Production of metal.-Cobalt is added to the heatabsorbing borosilicate glass described in the parent Specification in order that it may give a daylight effect to transmitted artificial light. The glass is rendered heat absorbing by ferrous oxide, the ratio of ferrous oxide to cobalt oxide being between four to one and sixteen to one. Batches for suitable glasses are given in the Specification.
Patent GB-1083076-A (GB)
Title: A process for resolving d,l-pantolactone
IPC: C07D307/33
Filed: 1966-12-22
Abstract: A process for resolving D,L-pantolactone uses as the resolving agent a 1,4a -dimethyl-7-isopropyl-octahydro-, dodecahydro-, or per-hydrophenanthrene derivative which is substituted at the 1-position with a -NH2 or -CH2NH2 group.  The salts of a ,q -dihydroxy-b b -dimethyl butyric acid with the above bases, formed during the resolution, are claimed per se. Preferably, the sodium salt of a racemic mixture of this acid is first formed from the pantolactone and is reacted with 55 to 57 molar per cent of the phenanthrene derivative hydrochloride.  At equilibrium the L-( - )-salt of the phenanthrene derivative precipitates. Thus D-( - )-pantolactone may be formed from the D-( + )-sodium salt left in solution by acidification, and L-( + )-pantolactone may be formed via its sodium salt, and then racemized to form fresh starting material. Exemplified amines of the above formula used for the resolution are the D 5, D 7, D 46-8a octahydro, D 8 dodecahydro and perhydro derivatives.
Patent GB-921464-A (GB)
Title: Mycobacteriostatic compositions
Inventor: BROWN JOSEPH PATRICK
IPC: A01N33/06
Filed: 1960-05-19
Abstract: The invention comprises trisubstituted p-phenylenediamines of the formula <FORM:0921464/IV(a)/1> in which R1 and R2 are each a methyl or ethyl group and R3 is a secondary alkyl group containing more than 4 carbon atoms or a cycloalkyl group, but where R3 if a secondary alkyl group contains more than 6 carbon atoms if R1 and R2 are methyl groups and their salts and a process for the preparation thereof in which a diamine of the formula <FORM:0921464/IV(a)/2> or a suitable nitrogen containing precursor e.g. a nitro compound of the formula <FORM:0921464/IV(a)/3> or a nitroso, azo or hydrazo derivative, is reductively alkylated in the presence of a ketone from which the group R3 can be derived by reduction.  Such compounds are employed inter alia as active ingredients in mycobacteriostatic compositions (see Group VI).  Specified values for R3 include 1-methyl-n-heptyl, -n-amyl, n-decyl, 1-ethyl-4-methyl-n-amyl and cyclohexyl.  Acids from which salts may be derived include hydrochloric, sulphuric, acetic, oxalic and picric acid.  The bases may be converted quaternary ammonium salts by treatment with alkyl halides. Examples are furnished in which the reduction is carried out with hydrogen at elevated temperature and pressure in the presence of a platinum or carbon catalyst.ALSO:A mycobacteriostatic composition that is a suspension, emulsion or solid contains as active ingredient a p-phenylenediamine of the formula <FORM:0921464/VI/1> where R1 and R4 are each a hydrogen atom or a hydrocarbon group and R2 and R3 are each a hydrocarbon group, or where R1 and R2 together with the nitrogen atom form a heterocyclic ring, or one of its salts, in admixture with an inert diluent.  The invention also comprises mycobacteriostatic compositions which are solutions of compounds of the above general formula in which R1 and R2 are each a methyl group or ethyl group, R4 is hydrogen and R3 is a secondary alkyl group containing more than 4 carbon atoms or a cycloalkyl group, but where R3 if a secondary alkyl group contains more than 6 carbon atoms if R1 and R2 are methyl groups or their salts.  The active substances may be suspended in an aqueous medium, the suspension being stabilized if necessary by addition of a surface active agent e.g. soap or the sodium salt of a long chain alkylated aromatic sulphonic acid. Alternatively a solution in an organic solvent may be emulsified in aqueous media.  Organic solvents specified include toluene, cyclohexane, petroleum ether, chloroform and chlorbenzene.  Animal or vegetable oils such as castor oil, sperm oil, cottonseed oil or rape oil or mineral oil may also be employed as solvents.  In powders, talc may be used as inert diluent.
Patent GB-739892-A (GB)
Title: Improvements in and relating to the mounting of rollers and the like
IPC: F16C13/02
Filed: 1954-06-16
Abstract: 739,892. Bearings. BENTELER-WERKE AKT.-GES. June 16, 1954 [June 26, 1953], No. 17677/54. Class 12 (1). In a mounting for a roller 1. the ends of detachable journals 2 are formed with spherical surfaces 5 which coact with spherical surfaces on bushes 6 disposed in recesses 4 in the ends of the roller 1. Rotation of the trunnions 2 with respect to the roller 1 is prevented by inter-engaging dogs 7. The trunnions 2 are rotatably mounted in detachable housings 8 by ball or roller bearings.
Patent GB-943725-A (GB)
Title: Process for preparing organosilicon compounds
IPC: C07F7/12
Filed: 1962-05-08
Abstract: Bis- (diorganohalosilyl) aromatic hydrocarbons of formula X(R1)2SiRSi(R1)2X-(1) are prepared by heating in a closed system at 100 to 300 DEG C. 1 part of a compound: X(R1)2Si[RSi(R1)2]nX-(2) where R is arylene and R1 is a monovalent hydrocarbon, 2 to 10 parts of a dioranodihalogenosilane (R1)2SiX2-(3); from 0.001 to 1.0 parts of a polyvalent metal halide of formula M(X)a where M is Mg, Fe, B or Al and a  is 2 to 4 and is equal to the valence of M, and from 0 to 0.1 parts of a silicon hydride HSi(R1)bX3-b where b  is 0, 1, 2, or 3, and then separating the bis (diorganohalosilyl) aromatic hydrocarbons. The polymeric starting material (2) is produced as a bye product in the preparation of the compounds (1) by reacting a diorganodihalogenosilane and a dihalosubstituted aromatic hydrocarbon in presence of an active metal such as magnesium or sodium.  X may be Cl, Br or I. Specified values of R may be phenylene, naphthalene, and tolylene while R1 may be phenyl, tolyl, naphthyl, phenylethyl, benzyl, methyl, ethyl, propyl, butyl, octyl, vinyl, allyl, cyclohenyl, cycloheptyl, cyclohexenyl and cycloheptenyl radicals.  R and R1 may be the same or different.  Specified dihalodiorganosilanes are dimethyldichlorosilane, diethyldichlorosilane, methylcyclohenyldichlorosilane, methylvinyldichlorosilane, methylphenyldichlorosilane or diphenyldichlorosilane.  In Example (1) mixtures of Cl (CH3)2Si <FORM:0943725/C3/1> with proportions of (CH3)2SiCl2, MgClBr, and CH3HSiCl2 are reacted in an autoclave and after filtering and distilling p-bis (dimethylchlorosilyl) benzene is recovered in yields of 10.7% to 21.0%. In Example (2) FeCl3 is used as the metal halide and in Example (3) a polymer Cl(CH3)2Si [C10H6Si(CH3)2]nCl is mixed with (CH3)2SiCl2, CH3HSiCl2 and AlCl3 to yield 2,7 bis (dimethylchlorosilyl) naphthalene. Alternatively BCl3 may be used as metal halide.
Patent GB-1286219-A (GB)
Title: Method of producing a pattern in a metallic film
IPC: H01L21/00
Filed: 1971-05-28
Abstract: 1286219 Etching NATIONAL CASH REGISTER CO 28 May 1971 [2 July 1970] 17725/71 Heading B6J An N-type silicon semiconductor wafer 10, Fig. 3, has formed thereon by oxidation a silicon dioxide layer 15 formed thereon and formed with windows to expose p-type regions of the wafer. An aluminium film 20 is evaporated on to the layer 15 and the exposed regions of the wafer. A photoresist is deposited on the film 20, and selectively removed by a solvent after exposure to ultraviolet radiation through a mask. The exposed film 20 is then etched by a stream of phosphoric acid directed thereon while the wafer and film assembly is rotated to remove gas bubbles formed during etching, to produce a semiconductor device having contacts 25, 26, 27, of which the last two contact the p-type regions. Three toothed spinners 20, Fig. 1, are provided. Each spinner supports an article to be etched and is rotated at 2;000 r.p.m. by a motor 52 through a gear 43, from which it can be disconnected by a cam 41. Etchant 45 is heated in a reservoir 49 by a heater 47 and pumped into a reservoir 46, whence it passes through a tube 54 into the spinner and on to the article, excess etchant collecting in a housing 43<SP>1</SP> from which it returns to the reservoir 45.
Patent GB-1362759-A (GB)
Title: Apparatus for textile treatment
IPC: D06C3/02
Filed: 1972-04-18
Abstract: 1362759 Finishing fabrics BRUCKNER APPARATEBAU GmbH 18 April 1972 [28 May 1971] 17785/72 Heading D1S [Also in Division F4] Loop pile fabric is conveyed through a number of treatment zones of differing temperatures by a pair of tenter chains, and is supported in two of the zones by separate conveyors. In Fig. 1, the fabric is conveyed through an inlet zone 1, a drying zone 2, a fixing zone 3, and a cooling zone 4 by tenter chains 6 and is supported against sagging by conveyor belts 7, 8, 9. The inlet zone 1 is at ambient temperature, the drying and fixing zones 2 and 3 are at a high temperature, and the cooling zone 4 is at relatively lower temperature. In a modification, Fig. 2 (not shown), the conveyor belt 7 extends just inside the drying zone 2, and the conveyor belt 9 extends just inside the cooling zone 3. The fabric may be subjected to washing with a solvent or steam shrinkage in the inlet zone.
Patent GB-1208247-A (GB)
Title: A pusher unit for double cylinder knitting machines
Inventor: LONATI FRANCESCO
IPC: D04B15/88
Filed: 1969-04-08
Abstract: 1,208,247. Knitting machines. F. LONATI. 8 April, 1969 [19 April, 1968], No. 17797/69. Heading D1C. In a super-posed cylinder knitting machine, two sets of rod-like levers 13, 14 of two different lengths are arranged at regular intervals round a fixed shaft 12 and extended down through the upper cylinder 1 into the lower cylinder 2, the levers 13, 14 sliding in guide grooves in a collar member 16 within and rotating with the upper cylinder and being reciprocated by an annular cam member 24 above the upper cylinder so that the lower ends of the rods each describe a closed path in which means on their lower ends engage and push down the article being manufactured. The upper cylinder 1 is driven through a gear 3 secured to a body 4 resting through bearings 5 on a fixed structure 6 having two rods 7 on which a support member 8 is vertically slidable being biassed downwardly by springs 10 against which it may be raised by lever 9. Member 8 supports the shaft 12 carrying the eight levers 13, 14 all having at their lower ends plastics blades 15 with toothed edges which engage portion 2a inside cylinder 2. Projections 20 on levers 13, 14 engage the grooves 18 in collar 'member 16 which is carried on a bearing 17 on shaft 12 and has a projection to engage a groove 1a in cylinder 1. Levers 13, 14 are also guided in grooves 23 in another collar member 22 and have at their tops T-shaped projections held by springs 26, 27 in engagement with the cam member 24 which has a projection 24a so that the levers 13, 14 are moved sequentially. Before the levers are lifted, when working of a heel or toe is commenced or an article is finished, the .members 15 are grouped against shaft 12 as the upper ends 36 of levers 13, 14 are engaged by a frusto-conical disc 32 slidable on shaft 12 against the action of springs 32a by forked lever 33. Member 8 carrying the levers 14, 15 is raised by lever 9.
Patent GB-766690-A (GB)
Title: 2-mercaptobenzothiazole derivatives and herbicidal compositions containing the same
IPC: C07D277/74
Filed: 1954-06-17
Abstract: The invention comprises (benzothiazylmercapto-2) pentachlorobutene, bis-(benzothiazylmercapto - 2) tetrachlorobutene, tris - (benzothiazylmercapto - 2) trichlorobutene, tetrakis(benzothiazylmercapto - 2) dichlorobutene, pentakis - (benzothiazylmercapto - 2) chlorobutene and hexakis-(benzothiazylmercapto-2) butene and mixtures thereof, and their preparation by reacting 2-mercaptobenzthiazole or an alkali metal derivative thereof with dimeric trichloroethylene.  The reaction may be effected by mixing the reactants and allowing the mixture to stand, or by refluxing in an inert solvent, e.g. toluene, ethanol, nitrobenzene or ether.  Alkali metal mercaptides mentioned are those of lithium sodium and potassium.  In examples (1) 2-mercaptobenzthiazole is treated with ethanolic sodium hydroxide, the mixture filtered, cooled and dimeric trichloroethylene added; after leaving overnight mixture is filtered, and filtrate on standing for a month deposits a condensate of 2-mercaptobenzthiazole and trichloroethylene-dimer; (2) a suspension of sodium mercaptobenzthiazole in ether is treated with dimeric trichloroethylene as in (1); (3) as in (1), but refluxing the reaction mixture, to yield a condensation product in which substantially all the chlorine of the dimer is replaced; (4) mercaptobenzthiazole and the dimer are refluxed in toluene, giving essentially a mono - (benzothiazylmercapto - 2) pentachlorobutene; (5) ethanolic sodium mercaptobenzthiazole and the dimer are refluxed in toluene, and the condensation product obtained crystallized from alcohol.ALSO:Herbicidal compositions comprise the reaction product obtained by condensing 2-mercaptobenzthiazole or an alkali metal derivative thereof with trichoroethylene dimer, (i.e. (benzthiazylmercapto-2)- pentachlorobutene, bis (benzthiazylmercapto-2) tetrachlorobutene, tris (benzthiazylmercapto-2) trichlorobutene, tetrakis (benzthiazytmercapto-2) dichlorobutene, pentakis (benzthiazylmercapto-2) chlorobutene, hexakis (benzthiazylmercapto-2)-butene and mixtures thereof), and a finely-divided solid or a liquid carrier.  Oil-in-water emulsions of the active compounds (cyclohexanone is the preferred organic medium), in corporate ionic or non-ionic emulsifying agents, e.g. alkylbenzene sulphonates and polyglycol ethers, and may further include other agricultural pesticides, insecticides and fungicides.  Specified solid carriers are clay, pumice, talc and bentonite.
Patent GB-692490-A (GB)
Title: Improvements in or relating to devices for marking and/or forming cam profiles
IPC: B25H7/04
Filed: 1950-07-17
Abstract: 692,490. Copy-milling. MARBAIX, Ltd., G. E. (Sheffer Collet Co.). July 16, 1951 [July 17, 1950], No. 17845/50. Class 83 (iii). [Also in Group XXIII] Cams, e.g. for automatic screw machines, are marked out or shaped by combined rotary and longitudinal movement of the work relatively to a stationary scriber 31, cutter 36 or grinding wheel 32a, the cam profile being determined by the relative rates of linear and angular movement imparted to the work by an actuating pin 22 which is moved along a selected angularly adjustable direction. The cam plate 29 to be profiled is mounted fast on a spindle journalled in a carrier 25 slidable along guide rods 9, the spindle having a gear-wheel 27 meshing with a rack bar 23 which is slidable in the carrier 25. The bar 23 is actuated by a pin 22 carried by a slide adjustable along a guide arm 14 by a screw 19, the guide member being pivoted at 15 in a lower parallel slide 10 which is adjustable by a feed screw 11 along guide rods 8. The pin 15 is at the centre of a graduated quadrant 13 which is carried by the slide 10 and to which the guide member 14 is clamped at the required angular setting by a nut 17. The frame member 5 carries a spring- pressed scriber 32. After the profile has been marked on the cam-plate, it is removed, rough ground to form and then replaced in the apparatus for finishing by a grinding wheel 32a. According to a modification, the cam may be profiled without previous scribing, by a milling cutter 36, Fig. 6, driven by an electric motor 34. Limit stops may be provided to regulate the displacement of the slide 10 and a circular scale with associated pointer may be provided to indicate the angular position of the cam-plate.
Patent GB-209116-A (GB)
Title: Improvements in plug-cocks
IPC: F16K41/14
Filed: 1922-06-30
Abstract: 209,116. Hill, A., and Womersley, A. June 30, 1922. Closure members, rotary conical; leakage, preventing. - A plug cock is provided with an additional conical portion integral with the main plug, working in a corresponding seating, to prevent leakage. The plug a is formed integrally with a conical portion b which seats on a part c of the casing, and the plug is pressed into its socket by a spring h which bears also against a screwed cap m. Lubrication of the plug and the additional bearing portion b is effected by means of an oil reservoir f having passages g leading to the bearing surfaces. Reference has been directed by the Comptroller to Specification 2880/74.
Patent GB-705662-A (GB)
Title: Manufacture of concentrated polymer dispersions
Inventor: JONES FREDERICK ARTHUR
IPC: C08F265/06
Filed: 1950-07-19
Abstract: Stable concentrated aqueous dispersions of polymeric a -methylene monocarboxylic acid esters are made by polymerizing the monomeric material in the aqueous dispersion of a preformed polymeric material derived from one or more of said esters, containing 2 to 10 per cent, based on the final weight of polymer, of a stabilizing agent, e.g. gelatine, gum arabic and water-soluble partially hydrolysed polyvinyl acetate.  Monomers specified are methyl and ethylacrylates and methacrylates, methyl a -chloracrylates or mixtures, e.g. methyl and n-butyl acrylates. An aqueous dispersion of pre-formed polymer may be made by heating a monomer dispersion containing an emulsifying agent, e.g. alkyl naphthalene sulphonates, sulphated methyl oleates and modified polyethylene oxides, and catalyst, e.g. hydrogen peroxide and potassium persulphate, and the stabilizing agent.  After polymerization has been carried out a further quantity of monomer is added to the hot polymer dispersion, additional stabilizing agent being added, if necessary, before or during addition of the monomer. This process may be repeated, additional catalyst, emulsifying agent and stabilizer being added at each stage if required.  Alternatively, monomer may be added continuously to the preformed polymer dispersion.  The resultant dispersions, containing from 50 to 70 per cent. solids, are stable to hydrochloric and acetic acids but may be coagulated by methyl alcohol.
Patent GB-1303323-A (GB)
IPC: C09D175/00
Filed: 1970-04-15
Abstract: 1303323 Hydantoin derivatives CIBAGEIGY AG 15 April 1970 [15 April 1969] 17998/70 Heading C2C [Also in Division C3] Novel di-isocyanates of the Formula I wherein Z is a divalent aliphatic, cycloaliphatic or araliphatic radical and R 1 ,R 2 and R<SP>1</SP> 1 and R<SP>1</SP> 2  are independently hydrogen atoms or aliphatic, cycloaliphatic, araliphatic or aromatic hydrocarbon radicals or R 1 and R 2 and/or R<SP>1</SP> 1 and R1 2 together form a divalent aliphatic or cycloaliphatic radical; are obtained by reacting the corresponding amines or their salts with phosgene. For example, before phosgenation the amines may be converted to their hydrochlorides or they may be converted by means of carbon dioxide in the corresponding carbamic acids or betaine-like salts. The compounds may be used for the production of polyurethanes and they may be employed in curable mixtures together with organic compounds containing replaceable hydrogen atoms, e.g. polyhydroxyl compounds (see Division C3).
Patent GB-823024-A (GB)
Title: Improvements in or relating to the catalytic polymerization of alpha-olefins and to the preparation of catalysts therefor
IPC: C08F10/00
Filed: 1958-06-05
Abstract: A catalyst, suitable for polymerizing a -olefins (e.g. ethylene in particular but also propylene and styrene), is prepared by mixing alumina or silica or alumina silica (which has preferably been pretreated at 250-500 DEG  C. for about 1 hour) with a Group IV, V or VI transition metal halide and heating the mixture in presence of an inert gas (e.g. H2, N2, CH4, CO, He) in an open system at 115-850 DEG C., preferably 250-500 DEG  C. Preferably the catalyst contains 1-10%, particularly 2-7% of halogen.  In polymerization, the catalyst is used in presence of a promoter which is a Group I, II or III metal or hydride, carbide or alkyl thereof; the promoter is especially LiAlH4, but also mentioned are Na, K, LiH, NaH, KH, MgH2, CaH2, NaBH4, AlEt2Cl and AlEt3 (where Et + ethyl). The preferred halides are TiCl4, ZrCl4 and VCl4; also mentioned in specific Examples are TiBr4, TiF4, VOCl3, CbCl5, TaCl5, MoCl5,W Cl6. Polymerization is preferably conducted in presence of an inert hydrocarbon solvent such as n-heptane, n-octane or benzene, but particularly xylene or iso-octane.ALSO:Olefins, particularly ethylene, propylene and styrene, are polymerized at up to 350 kg/cm.2 pressure and 50-350 DEG C. with a catalyst (see Group III) which is the reaction product of Al2O3, SiO2 or Al2O3-SiO2 with, preferably, TiCl4, ZrCl4 or VCl4 at 115-850 DEG  C., to which a promoter, preferably LiAlH4, has been added.  Preferred polymerization conditions are:- (a) 0.01-10, particularly 0.1-1 parts by weight of promoter per part of catalyst; (b) 125-200 DEG  C.; (c) 35-280 kg/cm.2; (d) presence of an inert hydrocarbon solvent such as n-heptane, n-octane or benzene, and particularly xylene or iso-octane.
Patent GB-957898-A (GB)
Title: A device for contacting sheets carrying photosensitive layers with two liquids
IPC: G03D9/00
Filed: 1961-05-17
Abstract: 957, 898. Photographic processing apparatus. C. J. VAN LEEUWEN. 17 May, 1961 [May 24, 1960], No. 18031/61. Heading G2A. In an apparatus for applying two liquids in succession to a photographic sheet, the first is applied by roller, and the second by immersion. In the arrangement shown, the sheet is introduced into the apparatus between rollers 6, 7. The lower roller 6 dips into a bath 4 of developing liquid, which is thus applied to the under side only of the sheet. The sheet then passes into a fixing bath 5, being guided therein by guides 9, 12. These guides consist of a set of upper wires 12 and a set of lower wires 9, each set being divided into two groups in diverging directions (Fig. 2, not shown). The lower wires have an initial sharply bent portion 9a, 9b, so that the paper sheet passes into the liquid in bath 5 before making contact with the lower guiding wires. Thus no liquid is picked up by inadvertent contact, each part of the sheet being in contact with each liquid for exactly the same time. The sheet is discharged from the apparatus by rollers 14, 15.