baber/WOPTO huggingface dataset:
Patent GB-1536203-A (GB)
Title: Optical focussing device
IPC: G11B7/09
Filed: 1976-03-05
Abstract: 1536203 Electromagnetically driven lens mounts PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 5 March 1976 [10 March 1975] 08924/76 Heading G2J An adjustable lens mount, (eg for focusing the read-out spot in an optical record player), comprises a lens barrel which is an accurate sliding fit in a cylindrical guide bush such that the lens may move along its optic axis, and an electromagnetic drive means for effecting said motion, the drive means comprising a part moveable with the barrel and a part stationary with a frame part. As shown in Fig. 3 the lens 40 is carried in the barrel 41 which slides within a bush 47 concentrically held within soft iron case 43-38. An annular permanent magnet 42 has a soft iron annular polepiece 44 which defines an air-gap 46 with the case 43. A driving coil 45 ( of a loud speaker) is secured to the barrel 41 and is disposed in the air gap 46. A corrugated flexible diaphragm 48 is secured to a cover 51 which removably clips on to the magnet assembly, the coil terminals 53 being brought out to tags 52 in the cover 51. Rotation of the barrel 41 w.r.t. the cover 51 is prevented by ribs 58 engaging slots 57. In an alternative Fig. 1 (not shown) the diaphragm is adhered to the magnet assembly, and the air-gap and coil are situated at the lower end of the magnet. In a preferred form the barrel 41 is anodized aluminium and the guide 47 is treated with P.T.F.E.
Patent GB-268807-A (GB)
Title: Manufacture of azo-dyestuffs
Filed: 1927-03-31
Abstract: 268,807. I. G. Farbenindustrie Akt.- Ges. March 31, 1926, [Convention dale]. Samples furnished. Azo dyes are made by coupling diazo compounds with 1-aminoaryl-5-pyrazolones, in which the 3-position is substituted by methyl, carboxylic or carboxylic ester groups, and one of the hydrogen atoms of the amino group is substituted by a carboxylic ester group, e.g. -COOC2H5 or -CH2-COOC2H5. In examples (1) 1-4<1>-ethylcarboxyaminophenyl-3-methyl-5-pyrazolone is coupled with diazotized o-anilinesulphonic acid, and (2) 1-phenvl-3-methyl-5-pyrazolone-4<1>-glycine ethyl ester is coupled with diazotized sulphanilic acid: the products are yellow powders which dye wool in fast shades and give very even dyeings on wool and silk mixtures. If anthranilic acid, o.-aminophenol or their derivatives are used as diazocomponents, the dyeings may be developed by after-chroming. The aryl group in the pyrazolone molecule may contain other substituents, e.g. sulpho groups, but for dyeing wool and silk mixtures, the dyestuff molecule should not contain more acid groups than are necessary for rendering the dyestuff soluble. The same pyrazolones may be used as components in the preparation of disazo dyes. The Specification, as open to inspection under Sect. 91 (3) (a) comprises also the use of aminoarylpyrazolones of the above type in which the remaining hydrogen atom of the amino group is replaced by an alkyl, aryl, or aralkyl group, and in which the aryl nucleus is substituted by carboxyl or hydroxy groups. This subject-matter does not appear in the Specification as accepted. Aminoarylpyrazolones are obtained by reduction of the corresponding nitroarylpyrazolones obtained by condensing nitroarylhydrazines with acetoacetic or oxalacetic ester. The above carboxylic-estersubstituted aminoarylpyrazolones are obtained by treating the aminoarylpyrazolones with chloroformic ester, chloracetic ester, etc., in presence, if required, of an acid-binding agent such as sodium acetate or chalk.
Patent GB-330664-A (GB)
Title: Improvements in or relating to electrical resistances
IPC: H01C10/10
Filed: 1929-03-20
Abstract: 330,664. Jones, E. March 20, 1929. Powdered and granular resistances.-Powdered or granular resistance material d is contained in a cartridge consisting o f metal end plates b, b<1> connected by a flexible band a of non-conducting material, such as a strip of rubber-proofed canvas or linen having its ends vulcanized together. This band is secured to the end plates b, b<1> by wires c, each end plate consisting of two members clipped together, one having a flange so as to form a groove e 'which prevents displacement of the wires c. The cartridge is secured in a twopiece casing f, f<1> by means of a terminal screw g passing through the lower end plate b<1>, which is insulated from the casing f by insulating discs h. The upper end plate b is connected to the casing by a pig-tail connection o, a terminal p also being connected to the casing. The upper end plate b is provided with a key-hole slot j which detachably engages a groove in a screwed spindle k passing through a screwed sleeve l provided with an insulating knob m, by rotating which the compression of the material d may be varied.
Patent GB-1399973-A (GB)
Title: Method of recovering aromatic hydrocarbons of high purity
IPC: C07C5/02
Filed: 1973-02-23
Abstract: 1399973 Aromatic hydrocarbons METALLGESELLSCHAFT AG 23 Feb 1973 [25 Feb 1972] 9083/73 Heading C5E Aromatic hydrocarbons of high purity are recovered from a hydrocarbon mixture also containing unsaturated non-aromatic hydrocarbons by a process comprising contacting the mixture in a first zone with an isomerization catalyst in the presence of gaseous H 2  at a pressure of 8-60 kg./cm.<SP>2</SP> and 400-550‹ C. and, after cooling, contacting the resulting mixture in a second zone at the same pressure but at 40-400‹ C. with a hydrogenating catalyst consisting of a metal or metal oxide and/or sulphide of Group VI or VIII without prior separation of the liquid and gaseous components, whereafter the mixture is cooled and separated by distillation. The isomerization catalyst may contain Pt and the hydrogenation catalyst may be an oxide and/or sulphide of Co and/or Mo. The example describes the separation of xylenes for a C 8  cut.
Patent GB-313669-A (GB)
Title: Method of producing acetylene and apparatus therefor
IPC: C10H13/00
Filed: 1928-03-26
Abstract: 313,669. Gebhardt, H. March 26, 1928. Plug cocks; scrapers.-In a device for discharging carbide residues from an acetylene generator, the residue falls from a discharge channel 61 into a cylinder 65 fitted with a piston 63. An outlet valve 66 has a port 67 and, as the piston moves to its upper dead-centre position, the valve is rotated through 180‹ so that the port 67, as shown in Fig. 1, registers with the outlet 73. This rotation is effected against the action of a spring 75 by toothed segments 68, 69, Figs. 1 and 9, driven from a shaft 70. When the segments disengage, the valve returns to the position shown in Fig. 8. The segments 68, 69 also operate a rotary scraper 74 in the cylinder 65.
Patent GB-363920-A (GB)
Title: Apparatus for projecting illuminated picture signs particularly on cloud screens
IPC: G09F19/18
Filed: 1931-03-25
Abstract: 363,920. Optical-projection apparatus; lantern slides. COLBERG, A., 119, Edelstedter Weg, Hamburg, Germany. March 25, 1931, No. 9147. Convention date, Oct. 11, 1930. [Classes 97 (i) and 98 (ii).] Apparatus for projecting on to clouds &c. comprises means for producing a parallel light beam, a convex projecting-lens system, and a slide having a mirror surface in the form of the image to be projected. As shown, a casing 1, adjustable round vertical and horizontal axes, contains a light source 5, a parabolic mirror 4, a convex lens 6 carried by an axially adjustable tube 7, and a number of slides 9 interchangeably mounted on a rotatable drum 10. The drum 10 may be turned by a hand-wheel 20, and is held by a pawl 17 and ratchet wheel 15, the pawl being adjustable by a screw and nut against the action of a spring to enable the drum to be accurately positioned. Each slide 9 may consist of a mirror covered, in accordance with the image to be projected, by soluble black paint, carbon, &c., or by a removable stencil of heat-resisting material. In a modification, the apparatus is arranged so that the axes of the two parts of the light beam make an acute angle, and the slide carriers are connected together to form an endless belt passing between two drums.
Patent GB-494761-A (GB)
Title: Process for rendering textiles water-repellent
IPC: D06M13/322
Filed: 1937-03-31
Abstract: Textile materials of cellulose or cellulose derivatives or wool, in the form of fibres, threads, yarns, woven or knitted goods, are rendered water-repellent and resistant to benzine and soap wash by treatment with quaternary ammonium compounds of halogen methyl ethers of the general formulae R.C: (NH).O.CH2.N.Hal., R.CONH.CH2.O.CH2.N.Hal., and R.CHOH.C : (NH).O.CH2.N.Hal., where R is an aliphatic residue of at least 10 carbon atoms and Hal. is a halogen, followed by heating.  A diminution in swelling power and increased wet tenacity is also imparted to artificial silk.  The textiles are steeped in aqueous solutions of the quaternary compounds containing, if desired, buffer substances, at ordinary or elevated temperatures, wrung out, dried, and heated, e.g. at 90 DEG  C. for several hours, at 120 DEG  C. for about one hour, or for a shorter time at still higher temperatures.  The treatment may be combined with a crease-proofing treatment by adding to the bath formaldehyde with or without urea an artificial resin, e.g. urea-aldehyde, or an initial condensation product, e.g. dimethylol urea; the quaternary compounds avoid any tendency of the bath to gelatinize.  In examples, (1) and (3) viscose artificial silk material is impregnated with an aqueous solution of the pyridinium compound of the chlormethyl ether obtained by treating with hydrochloric acid gas a mixture of 1 mol. of stearic acid amide and 2 mols. of trioxymethylene, or of 1 mol. of stearic acid methylolamide and 1 mol. trioxymethylene, dried and heated to 90 DEG  C., (2) a plush material consisting of cotton fabric with a viscose pile is treated in a bath containing the corresponding montanic acid derivative together with a urea-formaldehyde condensation product, wrung out, brushed, dried and heated for five minutes at 140 DEG  C., (4) viscose artificial silk flock is treated with an aqueous solution of the pyridinium salt of the chlormethylimino ether obtained by treating a mixture of octadecan nitrile and trioxymethylene with dry hydrochloric acid gas, dried and heated to 95 DEG  C., (5) a silk velvet having a viscose pile is passed through a bath containing dimethylol urea and the compound of example 4, wrung out, dried and heated for 5 minutes at 140 DEG  C., (6) a viscose raincoat material is passed through a bath containing dimethylol urea and the compound of example 3, dried and heated to 95 DEG  C.  Specification 492,699 is referred to.
Patent GB-894751-A (GB)
Title: Improvements in the hydrogenation of nitrogenous carbon compounds
Inventor: SUESSENGUTH HERMANN
IPC: C07C209/36
Filed: 1960-03-16
Abstract: A process for the hydrogenation of aromatic amino compounds and acyclic and carbocyclic compounds containing nitrogenous groups reducible to amino groups, wherein a hydrogenation of an aromatic ring to give a cycloaliphatic ring and a reduction of a nitrogenous group to give an amino group is achieved, comprises carrying out the hydrogenation in the absence of sulphur at a temperature between 40 DEG C. and 250 DEG C. under a pressure between 20 and 600 atmospheres in the liquid phase in the presence of at least one metal hydrogenation catalyst, the catalytic activity of which is impaired by sulphur, the catalyst having been sintered prior to the hydrogenation.  The catalyst may contain, for example, silver, manganese, copper, iron, cobalt or nickel and may be prepared by sintering the oxide at 800 DEG C.-1,400 DEG C. and heating the sintered oxide with hydrogen at 250 DEG C.-600 DEG C.  The catalyst may be supported on a carrier and promotors may be added. Aromatic amines may be hydrogenated at 200 DEG C.-250 DEG C. to give cycloaliphatic amines and other nitrogenous compounds containing, for example, nitro, nitroso, isonitroso and cyano groups may be hydrogenated at 60 DEG C.-150 DEG C. to give amino compounds.  Other substituents such as aldehyde groups which are reduced and carboxylic, halogen, amino and alkoxy groups which are not reduced may also be present in the reactants.  A list of suitable reactants is given.  In the examples, ethylene diamine, cyclohexylamine, tolylene diamine, dimethyl hydrazine and isopropylamine are prepared.ALSO:Oxides of silver, manganese, copper, iron, cobalt or nickel are converted to the metal by sintering the oxide by heating for example, to a temperature within 20-60 DEG C. of the melting point and reducing the sintered oxide with a stream of hydrogen. Mixtures of metal oxides may be reduced after sintering to give alloys and in examples alloys of cobalt and aluminium and cobalt, nickel and aluminium are prepared.
Patent GB-1378937-A (GB)
Title: Fuel injection nozzles
IPC: F02M61/14
Filed: 1972-02-29
Abstract: 1378937 Mounting fuel injectors ROBERT BOSCH GmbH 29 Feb 1972 [2 March 1971] 9246/72 Heading F1B A fuel injection nozzle comprises clamping means including an apertured flange which cooperates with shoulders formed by flats 8, Fig. 1 on a nozzle holder, the flange aperture comprising a bore 10 permitting the flange to be pushed on to the nozzle holder and a recess 11, Fig.3 wide enough for the flange to be pushed transversely to engage the flats. The recess is also wide enough to pass over a leakage connection 15.
Patent GB-906230-A (GB)
Title: Stabilized vinyl alkyl ether-maleic anhydride interpolymer composition
IPC: C08K5/00
Filed: 1961-03-14
Abstract: Compositions comprise interpolymers of vinyl alkyl ethers with maleic anhydride and a stabilizing amount, preferably 0,00001 to 1,0%, of a free radical inhibitor.  Specified inhibitors are phenyl-a -naphthylamine, tertiary butyl catechol, tertiary dodecyl mercaptan, 2,4,6-trinitrotoluene, 2,4,6-tritertiary butyl phenol, chloranil, nitrodimethyl aniline, tetrahydroxyleucoanthraquinone, benzoquinone and hydroquinone. Specified ethers are vinyl methyl ether, vinyl ethyl ether, vinyl n-propyl ether, vinyl isopropyl ether, vinyl n-butyl ether, vinyl isobutyl ether, vinyl amyl ether, vinyl isohexyl ether, vinyl n-heptyl ether, vinyl isooctyl ether and vinyl n-octyl ether.  The interpolymers may be in the dry state or in a suspension or slurry in a non-aqueous liquid, e.g. benzene.  In Example (1) the preparation of an interpolymer by heating methyl vinyl ether with maleic anhydride in the presence of lauroyl peroxide is described.
Patent GB-141193-A (GB)
Title: Improvements in gripping devices for use on rope or cable haulage systems
IPC: B61B12/12
Filed: 1919-04-14
Abstract: 141,193. Gill, H. A., (Hosking, C.). April 14, 1919. Rope grips.-In endless rope or cable haulage systems, the haulage rope c is inserted between two jaws h, Fig. 1, formed at the outer end of an arm f which is mounted on a vertical pivot d carried by the truck e. The rope turns the arm f to the position shown in Fig. 2, and is prevented from coming out by the heads at the upper ends of the jaws. In a modification, Fig. 6, the heads of the jaws are bent in opposite directions.
Patent GB-689394-A (GB)
Title: Process for the desulphurization of hydrocarbon oils
Inventor: UNSCHULD HENRY MALASFELD
IPC: C10G32/02
Filed: 1950-04-18
Abstract: Hydrocarbon oil is desulphurized by heating the oil to 150 DEG -305 DEG F, subjecting the oil in the presence of steam for a period of less than one minute to an electric field obtained by passing between spaced electrodes within an enclosed zone, an electric current of 50 milliamperes to 1 ampere at 2500-3100 volts and 1800-2200 cycles per second, and then chilling the oil, to prevent further reaction. Partial desulphurization of the oil may first be effected by vacuum distillation.  Hydrocarbon oils referred to are gas oil, kerosene, naphtha, gasoline, benzene, toluene and other liquid coal tar hydrocarbons.  In Fig. 1, oil is introduced through line 1 into vessel 3 heated for example to 190 DEG -240 DEG F, by electrical resistance elements 4, and provided with cata <PICT:0689394/III/1> <PICT:0689394/III/2> lysts 9 and 10, consisting of alloys of nickel and silver, and lead and zinc, respectively.  Vapours and gases evolved from the oil are sucked through line 11 by vacuum pump 13 and then passed by lines 14 and 16 to cooling oil 18 whereby the vapours are condensed.  The heated oil from vessel 3 flows through line 25 and header 29 into a series of vertical tubes 31, preferably made of quarts.  Superheated steam is simultaneously injected into the oil through line 32.  The oil in tubes 31 is then subjected under reduced pressure to an electrical bombardment by means of electrodes 61, 62, 63 and 64 (see Fig. 2), which may be alternatively of platinum and tungsten.  On opening valve 34, the treated oil, cooled by the external cooling coil 77, for example to 59 DEG F to minus 13 DEG F, flows into header 37 and then by line 38 into receiver 39 which is cooled by a cooling coil 40.  Valve 35 is then opened and vapours and gases from the tubes 31 are evacuated, by vacuum pump 43, through lines 46, 47 and 49.
Patent GB-1154652-A (GB)
Title: A Ticket-Operated Automatic Gate.
IPC: G07B15/00
Filed: 1967-02-28
Abstract: 1,154,652. Ticket-operated barrier. TATEISI ELECTRONICS CO. 28 Feb., 1967 [8 March, 1966], No. 9491/67. Heading G4T. A ticket-operated barrier for controlling both the entry to and exit from a railway station or the like includes ticket slots 3a, 3b at each end of the barrier, and detectors 5a, 5b for a ticket inserted at 3a or 3b, controlling the direction of movement of a conveyer 12, said conveyer moving the ticket past validating apparatus 14 and discharging the ticket through the opposite slot 3b or 3a. Detection of an invalid ticket by the apparatus 14 or a person moving past photoelectric detectors 15a, 15b in the opposite direction to that of the ticket, closes a barrier arm 16a or 16b. The detectors 5a, 5b control solenoids 6a, 6b withdrawing members 8a, 8b from the ticket path and closing feed rollers 9a, 10a and 9b, 10b. The control system is shown in Fig. 3. On sensing a ticket, the detector 5a or 5b places a signal on line 21a or 21b to drive the conveyer in the appropriate direction and prepare an " AND " gate 34a or 34b. The " AND " gate fires on receipt of a validation signal from the apparatus 14 to inhibit a circuit 36a or 36b and prevent operation of the associated barrier arm 16b or 16a. A signal is generated on line 24a or 24b according to the order in which the photo-electric detectors 15a and 15b are operated. In addition, a reset circuit 38 is energized. The barrier arms may be replaced by a turnstile and a buzzer or lamp provided to give warning against fraudulent operation of the barrier. Switches may be provided to switch off one detector 5a or 5b and convert the barrier for one-way traffic only.
Patent GB-548029-A (GB)
Title: Improvements relating to die-casting machines
IPC: B22D17/32
Filed: 1941-07-28
Abstract: 548,029. Valves. E. M. B. CO., Ltd., and CATLIN, L. A. July 28, 1941, No. 9544. [Class 135] [Also in Group XXII] In a die-casting machine having an injection plunger operated pneumatically, the movement of the plunger is controlled, during the injection stroke and, if desired, during the return stroke, by means of a piston g connected by its rod h, to the plunger and having one or each end of its cylinder connected to a liquid reservoir 3 by a passage k having an adjustable valve n and a non-return valve w as described in Specification 541,083, [Group XXVI]. The passage u of the valve has a groove 2, Fig. 3, and at the other end a tapering groove 4 to prevent it from being choked and is adjusted by a handle r.
Patent GB-829166-A (GB)
Title: Grease composition
Inventor: BONMARTINI FRANCESCO GIUSEPPE
Filed: 1958-03-25
Abstract: A lubricating grease composition comprises a major proportion of lubricating oil (preferably 65-95, particularly 70-90 wt. per cent thereof) thickened to a grease consistency with an alkali or alkaline earth metal or magnesium salt of an aliphatic ester of phosphoric acid containing 2-28 carbon atoms.  The lubricating oil in the examples is a mineral oil of viscosity 300 or 150 SUS/100 DEG  F., V.I. 70 and 90 respectively, but the following synthetic oils are mentioned: esters (normal carboxylic esters, complex esters, phosphates, sulphites, carbonates), halocarbon oils such as chlorotrifluoroethylene polymer, polysiloxanes, mercaptals, formals and polyglycols or mixtures thereof.  The phosphoric ester salt may be a mono- or di-ester or mixtures thereof; examples given are dilithium isopropyl, dilithium 2-ethylhexyl, lithium ethyl lauryl, calcium isopropyl, strontium tetradecyl and sodium lithium isopropylphosphates, as well as the lithium salts of mixed mono- and di-esters wherein the alkyl group is n-propyl, isopropyl, n-butyl or n-aryl.  The composition preferably contains 0.1-3.0 wt. per cent of a surface-active agent particularly of formula R1NH(O=)P(OR)ONH3R11 wherein R is C1-4 alkyl or substituted alkyl and R1 and R11 are C8-20 alkyl or substituted alkyl, e.g. stearylammonium O-ethyl-P-stearylamino-, laurylammonium O - n - propyl - P - laurylamino- and laurylammonium O-ethyl-P-stearylamino-phosphonates. Preferably the grease composition has an A.S.T.M. penetration of <FORM:0829166/III/1> strokes and a dropping point of 200-500 DEG  F. Greases prepared by the method of Specification 812,060 are disclaimed.
Patent GB-887281-A (GB)
Title: A pile-driver having a hydraulically operated pile ram
IPC: E02D7/10
Filed: 1958-03-25
Abstract: 887,281. Power hammers. BREDNER, J. W. March 25, 1958 [March 27, 1957], No. 9591/58. Class 83 (4). [Also in Group XXI] An hydraulically-operated pile driver is characterized in that a fluid tank, pump unit and control means form a unit with a cylinder ram and piston which is adapted to be suspended in a pile-driving frame. The unit comprises two bars 3 connected by bridge members 7 and 8. Clamped to the bars 3 is a member 13 which carries a fixed hollow pistonrod 14. A cylinder 2 slides over the piston-rod and is guided by bearing bushes 5 and by a circular bearing 6 in the member 7. Also sliding on the bars 3 and guided by the bushes 25 is an assembly comprising a tank 26, electric motor 32 and pump 30 and a control valve 41. A gear-wheel 36 is driven from the motor 32 and oscillates the valve 41 via the links 38 and 39 and a bushing 54 which can slide axially on the valve shaft 40, and in one position drives the shaft through the keys 55. The bushing is moved relative to the shaft by face cams on a chain wheel 56 which can be operated from the ground. In the position in which the shaft is free of the bushing it can be operated manually by the chain wheel 58. In operation, the valve is first moved to a position in which pressure fluid from the pump passes through the piston-rod bore 18 to the chamber 19 and raises the cylinder ram. As the cylinder rises the valve is simultaneously being moved to a position where the pressure fluid will be by-passed from the pump to the tank and subsequently to a position in which fluid will be allowed to exhaust from the cylinder to the tank so that the cylinder falls on to the head of the pile. This is the position reached by the valve at the limit of anti-clockwise movement imparted to it by the lever 38. The amount of movement is regulated by engaging the pivot pin of the lever 38 in one of a number of holes 37 each at a different distance from the centre of the wheel 36. There is a period of dwell after the cylinder falls dependent on the length of the lost-motion slot 53 and the speed of the wheel 36.