baber/WOPTO huggingface dataset:
Patent GB-1161425-A (GB)
Title: Method for Manufacture of High Purity Iron Oxide Powder
Inventor: ARAKAWA KIICHI
IPC: C01G49/02
Filed: 1966-08-22
Abstract: 1,161,425. High purity iron oxide powder. YAWATA IRON & STEEL CO. Ltd. 22 Aug., 1966, No. 37499/66. Heading C1A. High purity iron oxide powder is produced by decomposing an organic # complex of formula (where X is O or N, and R 1 -R 3  are selected from H or halogen, aliphatic, alicyclic or aromatic hydrocarbon residues), by reaction with a hydrazine derivative, thus obtaining a powdered oxide, consisting mainly of magnetite. In the example, electrolytically pure iron oxide is dissolved in hydrochloric acid, extracted in methyl isobutyl ketone (MIBK), and the layer of MIBK extracted reversably in pure water to give an aqueous solution of ferric chloride. Acetylacetone is added to this aqueous chloride solution, thus forming acetyl acetone iron chelate, which is then purified by sublimation. The purified chelate is decomposed by reaction with hydrazine hydrate, thus yielding high purity iron oxide powder.
Patent GB-1055734-A (GB)
Title: Coin-operated telephone
IPC: H04M17/02
Filed: 1963-09-24
Abstract: 1,055,734. Automatic exchange systems. SODECO SOCIETE DES COMPTEURS DE GENEVE. Sept. 24, 1963 [March 19, 1963], No. 37501/63. Heading H4K. The cashing-in of coins at a pay-station causes electrical signals indicative of their value to be passed to a register at the station which sums the signals and thus records the amount cashed in, reception of impulses indicative of the charge for a call causing the number stored in the register to be reduced accordingly. When this number becomes zero, further cashing-in is effected. Coins not cashed-in are returned to the caller at the end of the call. The coin collecting means, the coin returning means, the register which computes the value of the unused cashed-in coins and means for interrupting the call if no further coins are available for cashing-in are all constituted by transistor circuits.
Patent GB-1468566-A (GB)
Title: Device fot the automatic measurement of tunnel sections
IPC: G01S17/89
Filed: 1974-08-28
Abstract: 1468566 Measuring distance photo-electrically ALCYON ELECTRONIQUE & PHYSIQUE SA 28 Aug 1974 [31 Aug 1973] 37562/74 Heading G1A Apparatus for measuring a tunnel section comprises: means arranged to illuminate a spot on the tunnel wall; optical means for imaging the spot; and analyzing means responsive to the image for providing an indication of the distance of the spot from the tunnel axis, the analyzing means including a rotatable disc on which the spot is imaged and having a spiral slit and a series of radial slits at equal angular increments. A He-Ne laser 1 Fig. 1 radiating about 1 mW projects a beam 2 perpendicular to a tunnel axis 3 to illuminate a spot 4a on the tunnel wall 5, distant R from the axis 3. An interference filter 10 admits reflected light to an optical system 7 coaxial with the tunnel and distant p from the transverse plane containing the point 4a. The optical system 7 focuses an image of the spot 8 at a radius R' on a motor-driven disc 9 coaxial with the tunnel and distant p' behind the optical system 7, the radius R' thus being a constant fraction of R. The analyzer disc 9 Fig. 2 has a spiral slit 11 tracing a path of radius uniformly variable with respect to angular displacement from a reference slit 12. Uniformly spaced radial slits 13 provide calibration marks representing units of the measured distance R. A display counter or recorder 20, gated on by a photo-cell 18 sensing the reference slit 12, counts pulses from the photo-cell 16 in response to calibration slits 13, until gated off by a photomultiplier 19 which senses when the slit 11 is coincident with the image at 8. A plurality of lasers 1 shining in various transverse directions, co-operating with a plurality of elements 15-19 placed at respective corresponding positions behind a disc 9, may be mounted on a railway bogie, Fig. 4, (not shown) so as to plot points around a transverse section. As the bogie travels, any one group of elements may be used to trace out a record of a corresponding longitudinal section. Means may be provided for comparing measured distances R with a master gauge, and for indicating, or recording, or sounding an alarm, whenever R deviates from the master gauge by more than a predetermined amount.
Patent GB-911262-A (GB)
Title: Pin and fastener comprising same for use in workpieces
IPC: F16B19/06
Filed: 1960-11-03
Abstract: 911,262. Rivets. HUCK MANUFACTURING CO. Nov. 3, 1960 [Nov. 18, 1959], No. 37796/60. Class 89 (1). [Also in Group XXII] A ring of synthetic rubber or soft metal together with an adjacent and protruding metal ring 32 is contained in a cavity 30 in the head 14 on the stem 10 of a fastener so that as the head is drawn against the workpiece 12 the ring is pushed into the cavity to extrude the soft material 31 of the ring of rubber or soft metal into the hole in the workpiece to seal it. The fastener is of the type pulled into position by an extension 18 of the stem so that a collar 20 may be swaged on to an annularly grooved portion 16 of the stem to secure together two plates 12 before the extension 18 is broken off.
Patent GB-362177-A (GB)
Title: Improvements in or relating to tea rolling machines
IPC: G09F3/02
Filed: 1930-12-17
Abstract: 362,177. Tea-rolling machines. KRUPP GRUSONWERK AKT.-GES., F., Buckau, Magdeburg, Germany. Dec. 17, 1930, No. 38113. Convention date, Oct. 30. [Class 129.] In a tea-rolling machine, the flap closing the discharge can be swung out of the closing position to such an extent beyond 90‹ that it does not project into the mass of tea in the collecting container. The flap 3 is operated by a lever 5 with lost motion due to a slot 8 in its bearing. On swinging the lever 5, a cam 9 releases the locking bolt mechanism 12 which holds the flap in closed position. Continued motion of the lever causes the shoulder of the slot 8 to engage a projection 6 on the door pivot shaft and swing it from the position shown in Fig. 2 to that shown in Fig. 4, where it is held by the bolt 19<1>.
Patent GB-1317334-A (GB)
Title: Housings for the operating handle of the latch of a vehicle door
IPC: E05B85/12
Filed: 1970-08-07
Abstract: 1317334 Housings for door latch handles ITW-ATECO GmbH 7 Aug 1970 [8 Aug 1969] 38258/70 Heading E2A A box-shaped housing open on one face and for surrounding an operating handle for the latch of a vehicle door and supporting the handle pivotally, is made of an elastically deformable plastics material and has on the face thereof opposite the open face an integral frame 5 extending along the two longitudinal sides 2, 3 and one narrow side 4 of the housing. The frame has external flanges 6 on the side 4 and external flanges 7, 8 in the neighbourhood of the free ends of the sides 2, 3, the flanges having grooves 9 aligned with one another and lying parallel to the front face, and the free ends of the sides 2, 3 having elastic tongues 11, 12 the overall width from the exterior of one tongue to the exterior of the other tongue increasing towards their free ends. As shown, installation of the housing is effected by providing in the door panel 27 an opening 13 complementary in shape to the frame 5 and including lugs 14, 15, the housing being longitudinally displaced in the opening with the side 4 leading so that the edges of the opening engage in the grooves 9 of the flanges and when, in the final position, the tongues 11, 12 abut the lugs 14, 15.
Patent GB-1287679-A (GB)
Title: Preparation of organosilicon compounds with silylphenyl groups
IPC: C07F7/12
Filed: 1970-08-07
Abstract: 1287679 Preparation of aromatic silyl compounds RHONE POULENC SA 7 Aug 1970 [8 Aug 1969] 38278/70 Heading C3S Organosilicon compounds of the formula wherein Ar denotes a (q+1)-valent aromatic radical having the valencies directly attached to the aromatic nucleus, R<SP>1</SP> denotes a saturated or unsaturated hydrocarbon radical, n and q are independently 1, 2 or 3, Y denotes a valency bond or a monovalent or polyvalent radical of valency p; when p = 1, Y denotes chlorine, hydrogen, straight or branched alkyl, cycloalkyl, phenyl, alkylphenyl or phenylalkyl, when p = 2; Y denotes a valency bond, a divalent aliphatic, cycloaliphatic or aromatic (including aralkyl) hydrocarbon radical, or a radical of the formula in which R<SP>11</SP> denotes an alkyl, cycloalkyl or aromatic (including aralkyl) radical, Z denotes a divalent alkylene, cycloalkylene or arylene radical having less than 12 carbon atoms and z is an integer of not more than 20; when p is greater than 2, Y denotes a p-valent aliphatic, cycloaliphatic or aromatic (including aralkyl) hydrocarbon radical, are prepared by reacting organosilicon compounds which differ from the final products but otherwise have the formula (in which R denotes C 1-4  alkyl) with an organochlorosilane of the formula in the presence of aluminium chloride. The quantity of organochlorosilane used is preferably 1À5 to 8 times the stoichiometric requirements of the reaction, while the amount of aluminium chloride used is preferably 0À1 to 10% by weight of the organochlorosilane reactant. Reaction temperatures are preferably 10 to 200 C. On completion of the reaction acetone is preferably added to the reaction mixture to complex the aluminium chloride. Exemplified products are dimethyldiphenylsilane, methyltriphenylsilane, triphenylchlorosilane, diphenylmethylchlorosilane, dimethylphenylchlorosilane, methylphenylvinylchlorosilane, ortho - chlorophenyldimethylchlorosilane, 1- diphenylchlorosilyl - 3,5 - dimethylbenzene, 1,4 - bis - (dimethylchlorosilyl)- benzene, 4,4<SP>1</SP> - bis - (dimethylchlorosilyl) - diphenyl, 4,41 - bis - (methylphenylchlorosilyl) - benzene, 4,4<SP>1</SP> - bis - (dimethylchlorosilyl) - diphenylmethane, 3,5,4<SP>1 </SP>- tris(dimethylchlorosilyl)- diphenylmethane, para - methylphenyldimethylchlorosilane, and an alpha, omega-dimethylchlorosilyldimethylsilphenylene of the formula Uses.-For preparation of oils, elastomers, rubbers and polysiloxane resins, particularly heat-resistant resins and elastomers.
Patent GB-303364-A (GB)
Title: Process and machine for the working of the cutting edges of mining tools and the like
IPC: B21K5/06
Filed: 1928-12-28
Abstract: 303,364. Soc. Anon. des ProcÚdÚs Morgon. Dec. 31, 1927, [Convention date]. Void [Published under Sect. 91 of the Acts]. Filing-machines, rotary; milling-cutters.-A machine for hot-milling the cutting-edges of mining tools such as drills, jumpers, &c., comprises a shaft 3 driven from a pulley 5 and carrying at each end a hot-milling cutter 4. Adjustable supports 7 located in front of the milling-cutters are provided with rods 8 slotted to receive work-rest members 9 which may either be straight, Fig. 6, or curved in either direction according to the shape of cutting- edge to be produced. Spark guards 6 are provided. In some cases, such as for obtaining a chisel-pointed edge a cutter comprising two parallel sets 10, 11, Fig. 8, arranged in staggered relation may be used, the work-piece being located at a with its edge held clear of the bottoms of the cutter teeth. This type of cutter is stated to be applicable to the coldmilling of metal, wood, or other substances.
Patent GB-1218628-A (GB)
Title: Improvements in the polymerisation of unsaturated hydrocarbons
IPC: C08F36/04
Filed: 1968-08-12
Abstract: 1,218,628. A four-component catalyst for conjugated diene polymerization. JAPAN SYNTHETIC RUBBER CO. Ltd. 12 Aug., 1968 [11 Aug., 1967], No. 38396/68. Heading C3P. Conjugated monomers of the formula wherein R<SP>1</SP>, R<SP>2</SP> and R<SP>3</SP> are hydrogen, C 1-6  alkyl or C 2-6  alkenyl, are polymerized in a halogenated hydrocarbon solvent to a polymer having a major proportion of 1,2- or 3,4-units using a catalyst comprising (a) a cobalt compound, (b) a phosphine of the formula PR<SP>4</SP>R<SP>5</SP>R<SP>6</SP>, wherein R<SP>4</SP>, R<SP>5</SP> and R<SP>6</SP> are alkyl, cycloalkyl, aryl, hydrogen or halogen, (c) an aluminium compound of the formula AlR<SP>7</SP>  m X 3-m , where R<SP>7</SP> is alkyl, X is Cl or F, and m is 0, 1, 1À5 or 2, and (d) an alkoxy alkyl aluminium compound of the formula AlR<SP>#</SP> n (OR<SP>9</SP>) 3-n , where R<SP>8</SP> and R<SP>9</SP> are alkyl and n is 1 or 2. The components (a) and (b) may be in the form of a complex. The process is conducted under otherwise conventional reaction conditions; oily polymers may be obtained. In the examples, butadiene, isoprene and pentadiene-1,3 are homopolymerized in CH 2 Cl 2  or C 6 H 5 Cl using the following catalyst components, (a) and (b) CoBr 2 .Ph 3 P, CoBr 2 .- Et 3 P, CoBr 2 .Ph 2 .Et.P, CoBr 2 .PhEt 2 P, cobalt bisacetylacetonate and Et 3 P, and cobalt octenoate and Ph 3 P, Ph 2 P.Cl or Et 2 PH, (c) AlEt 2 Cl, Al 2 Et 3 Cl 3 , AlEtCl 2 , AlCl 3 , AlEt 2 F, and (i-Bu) 2 - AlCl and (d) AlEt 2 (OEt), AlEt(OEt) 2 , AlEt- (OMe) 2  and Al(OMe) 2 (i-Bu).
Patent GB-1429296-A (GB)
Title: Polyurethanes and printers rollers manufactured therefrom
IPC: C08G63/20
Filed: 1972-08-17
Abstract: 1429296 Polyurethanes IMPERIAL CHEMICAL INDUSTRIES Ltd 2 Aug 1973 [17 Aug 1972] 38413/72 Heading C3R A process for preparing solid polyurethanes comprises reacting tolylene diisocyanate at a NCO : OH ratio of from 0À88 : 1 to 1À20 : 1 under substantially anhydrous conditions with, as sole isocyanate-reactive component, a polyester having a viscosity within the range 100 to 250 centistokes at 100‹ C., a hydroxyl value within the range 50 to 100 mg KOH/g. and an acid value less than 2À0 mg KOH/g., which has been formed by condensing adipic acid with a molecular excess of a mixture of polyols consisting of ethylene and propylene glycols in a molar ratio of from 65 : 35 to 75 : 25 together with a polyol having 3 or more hydroxyl groups and a molecular weight below 500, the amount of the latter being such as to give up to 0À2 branch points per 1000 units of molecular weight of the polyester. The polyol used in the examples is trimethylolpropane and a mixture of 2,4/2,6- tolylene diisocyanate is used.
Patent GB-848888-A (GB)
Title: Process for the manufacture of polyolefines
IPC: C08F36/04
Filed: 1956-12-17
Abstract: Olefines are polymerized in a medium such as an aromatic or aliphatic hydrocarbon (optionally halogenated) using as catalyst a C1 to C6 alkyl titanium halide.  Olefins specified are ethylene, propylene, butylene, isobutylene, octylene, butadiene, isoprene or mixtures thereof.  Catalysts disclosed are monomethyl titanium trichloride, tribromide and triiodide, dimethyl titanium dichloride, and monoethyl and monoisobutyl titanium trichlorides. The catalyst may be prepared as specified in Specification 848,887 and may be purified before use with sodium chloride and/or diphenyl or dibenzyl ether, followed by distillation and recrystallization.  Ethylene and/or catalyst may be added during the polymerization (see the examples).  Specifications 799,392, 799,823 and 801,031 also are referred to.
Patent GB-1537115-A (GB)
Title: Drum cutter or tunnelling machines for underground mining
IPC: E21C35/04
Filed: 1976-09-17
Abstract: 1537115 Cutter drum type mining or tunnelling machine EICKHOFF MASCHINENFABRIK UND EISENGIESSEREI mbH Gebr 17 Sept 1976 [19 Sept 1975] 38521/76 Heading E1F A multi-ratio transmission for a rotary cutter mining or tunnelling machine comprises a main shaft 5 having two co-axial parts 5a, 5b which may be rotable or fixed relative to each other, and a counter shaft 19 having a rotatable and axially slidable gear 26 which may be positively connected, when subjected to an axial thrust, to a gear 18, via dogs 30, the gear 18 being non-rotationally and non- slidably disposed on the counter shaft. A manually operated control fork 14 moves a gear 12 between the position shown in Fig. 2, in which rotary motion of a prime mover is transmitted from the shaft part 5a to the shaft part 5b via gears 12, 18, 26 and 25, and a position in which the gear 12 is disengaged from the gear 18 and rotary motion is transmitted between the shaft parts via a coupling ring 20 on the part 5a and internal teeth 21 on the part 5b. The gear 12 is in constant mesh with a driving wheel 16 of a fluid pump, the latter being connected via an hydraulic accumulator to a jack cylinder 31. When the drive is transmitted through the gears 12, 18, 26 and 25, the resultant torque is limited by the axial thrust applied by the cylinder 31 and by the angle of inclination of the flanks of the dogs 30. If the motor torque exceeds this value, the axial component acting on the flanks of the dogs 30, will become greater than the oppositely acting axial thrust of the cylinder 31 so that gears 18 and 26 disengage and remain disengaged.
Patent GB-1466614-A (GB)
Title: Thermally developable silver halide recording materials
IPC: G03C1/61
Filed: 1974-09-03
Abstract: 1466614 Heat-developable silver halide materials FUJI PHOTO FILM CO Ltd 3 Sept 1974 [3 Sept 1973] 38549/74 Heading G2C A heat-developable, silver halide material comprises a support coated with one or more layers containing a silver halide emulsion, a silver halide developer and a composition capable of generating alkali on heating which contains (a) an oxide and/ or a halide of Zn, Cd or Hg and (b) a compound which contains a ureido, thioureido or guanidino group. Specified components (b) are those of Formula: wherein X is O, S or NH, R<SP>1</SP> to R<SP>4</SP> are H, acyl, phenyl-sulphonyl, carbamoyl, nitro, allyl, C 1-8  alkyl or C 6-12  aryl either of which may be substituted or R<SP>2</SP> and R<SP>4</SP> together represent -CH 2 CH 2 -, -(CH 3 )CHÀCH(CH 3 )-, -CH=CHÀCH 2 - or X # -CH 2 -C-CH 2 - and thus complete a ring. Exemplified compounds (b) are urea sulphate, hydrochloride, or nitrate, mono- or di-benzoyl urea, tri-(methyl, ethyl or benzyl) urea, diacetylurea, carbumoylurea, thiourea, guanidine, nitroguanidine, 2-imidazolidone and 4, 5-dimethyl 2-imidazolidone.
Patent GB-1525627-A (GB)
Title: Viscose solution
IPC: C08L1/00
Filed: 1975-09-19
Abstract: 1525627 Peptized viscose BEROL KEMI AB 19 Sept 1975 [23 Sept 1974] 38608/75 Headings C3F and C3L Viscose is peptized by the addition of 0À2- 40 grams per kg. of cellulose present of a non- ionic, nitrogen-less surface active compound having a hydrophobic residue of at least 8 carbon atoms. The compound contains at least two hydrophobic groups of general formula -(A) n OH, these being substituted on carbon atoms of the residue and are no more than 6 carbon atoms apart. In the formula A is an oxyalkylene group containing from 2-4 carbon atoms and n is 0 or an integer from 1-30. The compound must comprise 55-81% by weight oxyethylene groups. Specified compounds are adducts of ethylene oxide with dodecane-1,2-diol, tetradecane-1,2- diol, hexadecane - 1,2 - diol, C 15-18  - alkane- 1,2 - diol, hexadecyl - 2,3 - dihydoxypropyl sulphide, dodecyl - 2,3 - dihydroxy - propyl ether, dodecyl - 2 - hydroxy - 3 - mercaptopropyl ether and hexadecyl-2,3-dihydroxypropyl sulphone.
Patent GB-1405358-A (GB)
Title: Monoazo pigments and a process for their preparation
IPC: C08K5/34
Filed: 1973-08-16
Abstract: 1405358 Monoazo pigments CIBA-GEIGY AG 16 Aug 1973 [17 Aug 1972] 38664/73 Heading C4P New monoazo pigments of formula wherein R is H or a C 1-6  alkyl or aryl group, R 1  is a naphthol residue in which the -N=N- -OH and -CO- groups are in the 1,2,3- positions or the -CH(COCH 3 )- radical R 2  is a benzene or naphthalene radical having a 5- or 6- membered hetero ring fused thereto, X and Y are H or halogen atoms or C 1-6  alkyl or alkoxy groups, X 1  and Y 1  are H or halogen atoms or C 1-6  alkyl, alkoxy, alkoxycarbonyl, CF 3  or CN groups and the -N=N- and -NH- groups in ring A are in the m- or p-position are.prepared by azo coupling using diazotized aminophenylamino-quinazolines. The dyes may be used to colour a variety of natural and synthetic polymer materials in the mass in yellow, orange, red, blue and violet shades.
Patent GB-1018362-A (GB)
Title: Composition of polyethylene having an improved toughness
IPC: C08K5/11
Filed: 1964-07-10
Abstract: Impact-resistant articles may be moulded from a composition of polyethylene, a copolymer of ethylene and/or propylene and/or butene, and a dialkyl ester of an aliphatic dicarboxylic acid.  In examples the esters used are dioctyl adipate and sebacate, dilauryl sebacate and didecyl azelate.
Patent GB-1523454-A (GB)
Title: Feed control device
IPC: B65H63/02
Filed: 1975-09-22
Abstract: 1523454 Yarn clearers; stop motion; tension control UNELEC 22 Sept 1975 [26 Sept 1974] 38866/75 Headings DID and D1J A knot or loop detector for use with elongate material 1 being wound up comprises a micro-switch 8 that contacts the material between tension means 3 and a return pulley 9 and serves, in the event of a break in the material, to actuate braking means 12 that can act on the material downstream of the micro-switch; and in the vicinity of the micro-switch 8 a calibrated orifice 4 through which the material passes, the orifice 4 being at the end of a pivoted lever 5 the arm length of which and location relatively to the micro-switch 8 is such that when a knot or loop fails to pass through the orifice 4, the lever 5 rocks along the arc 13 so as to pull the flow path of the material away from the micro-switch and so cause the micro-switch to actuate the brake 12. The braking means 12 may be arranged between two multi-groove pulleys 10, 11 to enable an appreciable length of material to be kept in reserve between the micro-switch 8 and the take-up means. The then drawn material is wound in a Fig. of 8 between the two pulleys 10, 11 and the braking means 12 acts at the crossing zone. A counterweight 7 on the lever 5 balance the effort exerted by the material on the orifice 4 during normal flow.
Patent GB-969352-A (GB)
Title: Methods for preparing rutile pigments of improved photochemical stability
IPC: C09C1/36
Filed: 1961-11-02
Abstract: Rutile pigments with improved photo-chemical stability are produced from a rutile pigment which has already been after-treated in aqueous suspension with a water-soluble silicate and/or one or more water-soluble salt of the metals herein defined, and calcined by subjecting the rutile pigment to a second after-treatment in aqueous suspension with a water-soluble silicate and/or one or more water-soluble salts of metals herein defined to form a water-soluble coating on the pigment.  The metal is one which does not form a coloured oxide and which forms a water-insoluble hydroxide on the addition of alkali to an aqueous solution of the salt of the metal. The preferred second after-treatment employs a water-soluble silicate and a water-soluble aluminium salt and/or a water-soluble cerium salt in the respective quantities of 0.5-5% by wt., 0.5-5% by wt. and 0.1-1% by wt., each calculated as oxide and based on the rutile. Specification 874,511 is referred to.ALSO:A rutile pigment with improved photo chemical stability produced by coating the pigment with metal oxide (see Division C1) is incorporated into paper laminater.  A paper laminate of the following composition is exemplified.  80% by weight sulphite cellulose.  20% by weight sulphate cellulose.  3% by weight of a wet reinforcing agent based on the weight of the cellulose and 50% by weight of the rutile pigment based on the weight of the cellulose.  The weight of the sheet is 160 grams and the ash content is 23-24%.  The paper laminate is twice impregnated with a 50% aqueous solution of a melamine synthetic resin and after each impregnation the resin is dried and precondensed for 10 minutes at 130 DEG C. in a drying cabinet.  Thereupon the paper is placed in two layers between two highly polished aluminium plated steel plates using overlay paper, a dry adhesive foil and an aluminium sheet as coil, and compressed for 10 minutes at 140 DEG C. and 45 hg/cm2.  Specification 874,511 is referred to.