baber/WOPTO huggingface dataset:
Patent GB-183299-A (GB)
Title: Improvements in and relating to pistons and method of making the same
IPC: B23P15/10
Filed: 1921-05-20
Abstract: 183,299. Bowmar, G., and Holder, W. E. May 20, 1921. Moulds.-A vacuum chamber 2 is secured in a piston by a shoulder 8. The piston is cast round the chamber, which is secured to the core of the mould by wires 4.
Patent GB-528703-A (GB)
Title: Improvements in sheet feeding machines
IPC: B65H5/14
Filed: 1939-05-12
Abstract: 528,703. Feeding sheets. NATIONAL STANDARD CO. May 12, 1939, No. 14257. Convention date, Aug. 4, 1938. [Classes 100 (i) and 100 (ii)] A device for feeding sheets of metal to varnishing or lacquering rollers 2, 9 is formed of a permanent magnetic roller 13 which advances sheets forwarded by a conveyer to a shelf 12. From the roller 13 the sheets 30 pass to a support 31 fitted with four discs or buttons 35, Fig. 4, of magnetizable material let into brass supporting plates 36 secured by screws to a supporting plate 38, the buttons 35 being secured by screws 40 to a plate 41 connected to a supporting channel 39 upon which the plate 38 is secured. A horseshoe-magnet 42 is adjustable by screw mechanism to vary the magnetic strength of the buttons 35. These hold a sheet on to the plate 31 until pushers 32 on chains 17 driven by bevel gearing from the main drive shaft engage the rear edge of a sheet and advance it into contact with a magnetic roller 72, driven from the varnishing couple. The roller 72 feeds it into the rollers 2, 9 from which it is delivered by a driven magnetic roller 57 which advances the sheet to a conveyer 68. The magnetic force of the roller 57 is controlled by means of a bar of iron or other magnetic material 60 carried by adjustable arms 61 which can be set in the desired position and held by wing nuts 65. Plates of various sizes and weights may be handled by the magnetic devices described.
Patent GB-594168-A (GB)
Title: Improvements in and relating to hollow mouldings, especially those of strip form fordecorative and structural purposes
IPC: E04F19/06
Filed: 1946-06-05
Abstract: 594,168. Mouldings. PRIOR, H. A. June 5, 1946, No. 14261/45. [Class 20(iv)] A spreader for securing and strengthening a hollow open-backed moulding strip consists of plates 7 shaped to fit the interior of the strip and having a back plate 10 disposed at right-angles provided with lugs 11 and screw holes for attaching to a wooden backing member 14, Fig. 1. The spreader plates are inserted at intervals along the length of the moulding strip which has inwardly inclined flanges 5, Fig. 1, and may be C-shaped or of any other desired cross-section. The backing member may consist of a metal rail wherein the lugs 11 are dispensed with and two adjacent lengths of the moulding strip may be mounted by connecting the backing strips 14 by a strap 16, Fig. 4, the adjacent ends of the moulding strip being suitably mitred.
Patent GB-1248651-A (GB)
Title: Novel high-bulk yarn and a process and device for the manufacture thereof
Inventor: BUZANO MICHEL
IPC: D02J1/00
Filed: 1969-03-18
Abstract: 1,248,651. Interlaced yarn. SOC. RHODIACETA. 18 March, 1969 [18 March, 1968], No. 14299/69. Headings D1F and D1W. A process for the manufacture of a highbulk yarn comprises passing at least one yarn through a zone in a nozzle in which it is subjected to the action of a turbulent fluid and from which it is withdrawn in the same direction as that in which the fluid leaves the zone, the yarn being fed into the nozzle non-axially so that it rubs at least lightly on the wall of the nozzle. The yarn is preferably fed into the nozzle in a direction substantially perpendicular to the longitudinal axis of passage of the yarn in the nozzle. More than one yam may be fed into the nozzle, the velocities being the same or different. The yarn obtained may be withdrawn intermittently, which withdrawal may be controlled by a variable profile cam or a variable speed motor. At least one of the yarns fed into the nozzle is a continuous filament yarn.
Patent GB-543987-A (GB)
Title: Improvements in or relating to steam generating and superheating installations
IPC: F22G5/02
Filed: 1940-09-20
Abstract: 543,987. Water-tube steam boilers; steam superheaters. SUPERHEATER CO., Ltd. Sept. 20, 1940, No. 14395. Convention date, Nov. 1, 1939. [Classes 123 (ii) and 123 (iii)] A boiler having a vertical bank of tubes 12 connected to upper and lower drums 10, 11 is fired by two separate furnaces 14, 15 with water-tube walls, and the furnaces are separated by a tube wall 20 with space tubes at its upper end to direct the gases from the furnace 14, after heating a secondary superheater 24, directly to the inlet of the gas pass containing the tube bank 12, where they mix with the gases passing from the furnace 15 after heating a primary superheater 21. The superheat is controlled by regulating the proportionate amounts of fuel burned in the two furnaces. Specifications 371,244 and 373,844 and French Specification 643,712 are referred to.
Patent GB-700713-A (GB)
Title: Process for the preparation of dis- and polyazo dyestuffs
IPC: C09B39/00
Filed: 1951-06-18
Abstract: The invention comprises the disazo and polyazo dyestuffs which are produced by coupling 1 mol of a diazo compound (which may contain a metal in complex union) with 1 mol of a monoazo dyestuff of the formula <FORM:0700713/IV (c)/1> where one X is hydrogen and the other is sulphonic acid, Y is a metallisable group, and the nucleus I may contain one or more halogen, methyl, methoxy, nitro, sulphonamide or sulphonic acid substituents; coupling takes place in alkaline medium and the azo group enters in the 1-position; the products may be metallised in substance or on the fibre.  Coupling preferably takes place in the presence of a nitrogenous tertiary base such as pyridine.  The monoazo dyestuffs are prepared as in Specification 697,488.  The disazo products are suitable for wool, silk, leather and nitrogenous artificial fibres while the trisazo and polyazo compounds may be applied to cotton and regenerated cellulose. Metallisation may be carried out with copper sulphate, preferably in the presence of polymeric nitrogen compounds of the type disclosed in Specification 657,753.  In the examples the following dyestuffs are prepared:-(1) 1-naphthol-3 : 8-disulphonic acid \sM o-dianisidine --> 2-methoxy-5-sulphobenzeneazo-A, and coppered; (2) salicylic acid\sMbenzidine-->2-carboxy (or methoxy)-5-sulphobenzeneazo-A; (3) 2-naphthylamine-4 : 8-disulphonic acid --> m-toluidine --> cresidine --> 2-carboxy-5-sulphobenzeneazo-A, and coppered; (4) 5-amino-3-sulphosalicylic acid --> m-toluidine --> cresidine --> copper complex of 2-carboxy-5-sulphobenzeneazo-A; (5) salicylic acid \sM benzidine --> cresidine --> 2-carboxy-5-sulphobenzeneazo-A; (6) salicylic acid \sM p-aminobenzoyl-p-phenylene diamine --> cresidine --> 2-methoxy (or carboxy)-5-sulphobenzeneazo-A; (7) 2 - naphthylamine - 6 : 8 - disulphonic acid --> m-toluidine --> cresidine --> copper complex of 2-carboxy-5-sulphobenzeneazo-A, and coppered; (8) 5-aminosalicylic acid --> cresidine --> 2-methoxy-5-sulphobenzeneazo-A; (9) salicylic acid \sM benzidine --> cresidine --> 2-carboxy-4-sulphobenzeneazo-B; (10) sulphanilic acid --> 2-carboxybenzeneazo-A; (11) 5-nitro-o-anisidine --> 2-carboxybenzeneazo-A or -B; (12) salicylic acid \sM benzidine-3-sulphonic acid --> cresidine --> 2-carboxy-5-sulphobenzeneazo-A, and coppered.  A table is given of further dyestuffs, showing as an additional diazo component the dyestuff anthranilic acid --> 4-amino-41-(methylpyrazolonyl)-stilbene-2 : 21-disulphonic acid.  In the above examples A represents 1 : 7 - dihydroxynaphthalene - 3 - sulphonic acid attached in the 2-position and B the isomeric 4-sulphonic acid.  Coppering may be effected either by heating with an alkaline cuprammonium solution, with or without organic bases, or by fusion with copper salts and alkali salts of aliphatic monocarboxylic acids. Specifications 390,936 and 462,675 also are referred to.
Patent GB-872385-A (GB)
Title: Improvements relating to the replenishment of chromate baths used for treating zinc and cadmium
IPC: C23C22/24
Filed: 1960-04-25
Abstract: In a process for treating surfaces of zinc or cadmium or alloys consisting predominantly of one or both of these metals by means of a solution containing hexavalent chromium and one or more activating or other additions, periodical replenishment of the solution is effected with a solution containing hexavalent chromium in an amount such as to restore the original concentration and, for each grammol of CrO3 added as acid, from 1.5 to 7.0 gram equivalents of an acid with a pk less than 5.0.  If a dichromate is used to replenish the hexavalent chromium an additional gram equivalent of the acid is required, while if a chromate is used, two additional gram equivalents of the acid are required.  The replenishment solution may also contain the activating or other additions in proportion to the amounts lost by drag-out.  Thus the added acid may serve simultaneously to introduce activating anions lost by drag-out. In the Examples, (1) a solution for brightening galvanized surfaces contains chromic, nitric and sulphuric acid and is replenished with these acids, (2) a solution for yellow-chromating p  pure zinc, die-cast zinc and cadmium-plated parts contains chromic acid and sodium chloride and is replenished with chromium acid, sodium chloride and nitric acid, (3) a solution for yellow-chromating pure zinc and injection-moulded zinc articles contains chromic acid, sodium chloride, sodium sulphate and nitric acid and is replenished with a solution containing these compounds, and (4) a solution of green-chromating galvanized sheets and pure zinc sheets contains chromic acid, nitric acid and sodium formate and is replenished with chromic acid, sodium nitrate and formic acid. Other additions which may be present in solutions of this type are magnesium ions and radicals of fluoride and boric acid.
Patent GB-1205847-A (GB)
Title: Improvements relating to a box-making machine
Inventor: HOTTENDORF WILLIAM JAMES
IPC: B31B50/36
Filed: 1968-03-26
Abstract: 1,205,847. Box-making machine. SUNDS A.B. 26 March, 1968 [30 March, 1967], No. 14549/68. Heading B5D. [Also in Divisions B6 and B8] A machine for making flat folded adhesively secured box blanks consists of sections for feeding 10, Fig. 1, printing 14, 16, slotting, taping and trimming 18, folding 20 and delivery 22, powered by a drive shaft 52 and electric motors. The blanks 12 are fed in by a conveyer belt (176), Fig. 4 (not shown), or kicker 58, Fig. 2, and each operation is performed on the moving blank as it passes through the machine on perforated conveyer belts 70, 326. The conveyer belts 70, 326 form one face of chambers 200, Fig. 6, 130, Fig. 15, running along the machine and attached to the suction side of a fan, so that the blanks are held against the belts. The trimming knives 232, 276, Fig. 2, creasing knives 248, 292, 278 and slotting knives (308, 310), Fig. 11 (not shown), a baffle (212), Fig. 7 (not shown), in the printing section suction' chamber 200, and a bar 360 and belt 326 in the folding section are capable of lateral movements to accommodate different sized blanks. These adjustments are made with screw and sleeve mechanisms, some of which are linked by sprockets and chains for synchronous and equal movement. Folding of the blank flaps to 90 is performed by the bars 360 which slope inwardly and downwardly and completed to 180 degrees by the belts 362 which are twisted. During folding, the blanks 12 are held by suction to the underside of the conveyer belt 326, Fig. 15, which is supported by a U-shaped frame member 130 acting also as a suction chamber. Adhesive tape is dispensed in appropriate lengths from a taping wheel 234, Fig. 2, during the trimming, creasing and slotting operations. The folded blank is squared by being engaged between a fixed plate 372 and a reciprocating plate (376), Fig. 18 (not shown), and delivered from the machine under a pressure hold-down mechanism 138 to enable the adhesive to set.
Patent GB-1386804-A (GB)
Title: Chairs
IPC: A47C3/026
Filed: 1972-03-29
Abstract: 1386804 Adjustable chairs F DRABERT 29 March 1972 [30 March 1971] 14681/72 Headings A4J and A4U In a chair having a seat member 1 tiltable about a horizontal axis 2 against a torsion bar spring 10, the undersurface of the seat member is formed with bearings 5 in which engage the ends of lateral hollow arms 4 of a cross-shaped carrier 3 secured to a pedestal (7), the arms 4 being hollow to accommodate a lever which is operative to effect height adjustment of the chair. The pretension of the torsion bar spring 10 which has its free ends 10a resting against the seat member and its centre against the rear end 3a of the carrier can be adjusted by a screw 11 passing through the rear end 3a. The front end 3b of the carrier carries a shock absorbent cap 14, the position of which can be adjusted by a screw 12.
Patent GB-830898-A (GB)
Title: Improvements in or relating to the manufacture of copolymers of acrylonitrile
IPC: D06P5/22
Filed: 1956-05-11
Abstract: Copolymers of acrylonitrile with a halogencontaining ester of vinyl phosphonic acid are subjected to amination and/or hydrolysis, the ester preferably being one of the general formula <FORM:0830898/IV (a)/1> or <FORM:0830898/IV (a)/2> in which X represents an aliphatic radical containing 1 to 4 carbon atoms, Y represents a halogen atom and Z represents a halogen atom or a hydrogenation, e.g. vinyl-bis-(beta-chlorethyl)-phosphonate.  Amination may be carried out with methylamine, dimethylamine, trimethylamine, morpholine, pyridine, piperidine, piperazine, ethanolamine, diethanolamine, triethanolamine, dimethylamino-ethanol, ethylene diamine, hexamethylene diamine, ethyleneimino-propionitrile and compounds which react as bases, such as thiourea, methyl-, ethyleneand butylethylene-thioureas, benzimidazolethiol and 2-mercaptobenzthiazole.  After amination the basic groups in the copolymers may be reacted with acids such as sulphuric, phosphoric, hypophosphorous and hydrofluoboric acids.  Hydrolysis may be effected with solutions of alkali carbonates, alkali hydroxides, alkaline earth hydroxides or dilute acids.  In addition to the acrylonitrile and vinyl phosphonic ester the copolymer may contain in copolymerized form other monomers, e.g. betadimethylaminoethyl, beta - diethylaminoethyl, beta-pyrrolidinoethyl and beta-morpholinoethyl acrylates and methacrylates, the betadimethylaminoethyl and gamma - dimethylaminopropyl amides of acrylic and methacrylic acids, vinyl pyridine, N-vinyl-imidazole, N-vinyl-benzimidazole, N-vinyl oxazole, acrylic, methacrylic, crotonic, maleic, fumaric and vinyl-sulphonic acids, vinyl formate and acetate, allyl and methallyl alcohols and beta-oxyethylacrylamide.  The amination process is preferably carried out on the copolymers in solution in a solvent such as dimethyl formamide or tetramethylene sulphone and the hydrolysis process carried out when the product is in shaped, e.g. film or fibre, form. The polymeric products may be dyes with acid and/or basic dyestuff, the choice of dyestuff depending on the groups present in the copolymer.
Patent GB-131755-A (GB)
Title: Improvements in Self-cleansing Strainers of the Rotary Type.
Inventor: BAILEY FRANK
IPC: B01D33/15
Filed: 1918-09-12
Abstract: 131,755. Bailey, F., and Jackson, F. H. Sept. 12, 1918. Rotary strainers.-In a strainer of the type described in Specification 3149/03 and comprising a closed chamber, divided into two compartments, and a disk rotating in the chamber, cleansed by a return flow of liquid through the second compartment, the major portion of the disk is utilized for straining and the cleansing operation is effected by a comparatively small quantity of water passing through a comparatively small portion of the strainer. Each of the partitions G, which separate the compartments, can be adjusted angularly, to vary the relative sizes of the compartments, by means of a rack G<1> and pinion G<2> with handle G<3>. Bolts G<4> provide for axial adjustment of the partitions. Adjustable packing is placed between the back of each partition and the casing, and also between the rim of the strainer wheel and the casing. The water for cleansing mav be drawn directly from the delivery side of the straining compartment. Specification 5776/08 also is referred to.
Patent GB-373776-A (GB)
Title: Improvements in or relating to electric discharge lamps
IPC: H01J61/42
Filed: 1931-05-20
Abstract: 373,776. Electric discharge lamps forming a source of light. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London, and HARRIS, W. L.; of General Electric Co., Wembley, Middlesex. May 20, 1931, No. 14925. [Class 75 (iv).] A source of light consists of a combination of a hot cathode neon lamp and a high-pressure (exceeding 30 mm.) hot cathode mercury lamp wholly or partly surrounded by a screen of uranium glass or like fluorescent material. The glass screen may contain to 8 per cent by weight of uranium and it may form part or all of the envelope of the mercury lamp. The neon lamp may produce 5 to 20 per cent of the light produced by the mercury lamp and the two lamps may be placed in a diffusing enclosure.
Patent GB-626112-A (GB)
Title: Improvements in headgear pulleys used in connection with winding engines, haulages and other rotating machines
IPC: B66D3/06
Filed: 1947-06-06
Abstract: 626,112. Rope pulleys. ROBEY & CO., Ltd., and CROMPTON, A. June 6, 1947, No. 14963. [Class 80 (i)] A pulley for a rope drive is of fabricated metal construction with a boss 1, spokes 3, rim 6, and a grooved rim 9 of a moulded non-metallic material having a high co-efficient of friction for engagement by the rope 11.
Patent GB-1063033-A (GB)
Title: Color-television receiving system using beam-indexing signal
IPC: H04N9/24
Filed: 1964-04-10
Abstract: 1,063,033. Colour television. HITACHI SEISAKUSHO KABUSHIKI KAISHA. April 10, 1964 [April 18, 1963], No. 14967/64. Heading H4F. In a beam-indexing cathode-ray tube the beam indexing signal delay time, that is, the time interval from the instant of detection of the indexing signal due to secondary electrons to the instant when a primary-electron beam which is colour-switch controlled by the indexing signal reaches the phosphor screen, is caused to be equal to an integral number of either line periods or frame periods which is equivalent to the beam indexing signal delay time #g being zero. This causes any phase errors due to variations in the horizontal scanning speed to be reduced and also makes it possible to control the colour-switching circuit during the period of time #g. e.g. 8 micro-seconds, immediately after the start of horizontal deflection of the scanning beam. As shown in Fig. 2 the chrominance signal obtained from the colour-switching circuit 15 (5À5 Mc/sec.) passes to a picture signal amplifier and a pilot carrier oscillator 14 (34 Me/sec) and the chrominance signal is applied to the cathode 4 and the pilot signal to the grid 5 and also to a frequency converter 17. The modulated indexing signal detected from the secondary electron emissive electrode is passed through a side-band amplifier 16, frequency converter 17, an indexing signal amplifier 18, a frequency divider 19, a variable delay element 23 and a fixed delay element 24 and then applied to the colour-switching circuit 15. The sum of the delay time due to the delay element 23 (e.g. variable range of 0À2 micro-second) and due to the delay element 24 (e.g. 60 microseconds) is selected so that it is equal to the difference between the delay time #g of the remainder of the circuit and one line period. To reduce any fluctuation of the delay time of element 24 due to factors such as temperature one portion of the output from the delay element 24 is passed through a delay element 25 having a delay time equal to #g and then phase compared with the input to be applied to the delay element 23 by a phase difference detector 26 which corrects the delay time produced by the variable delay element 23 thereby to cause the indexing signal delay time to coincide with one line period. The Specification includes a description of a known beam-indexing cathode-ray tube having three secondary electron emissive indexing strips for every two phosphor triplets (Fig. 1, not shown).
Patent GB-811695-A (GB)
Title: Mixing apparatus and process for producing polyurethane plastics
IPC: F16B12/30
Filed: 1957-05-10
Abstract: <PICT:0811695/III/1> An apparatus for the production of polyurethane plastics consists of a mixing chamber 1, Fig. 1, supplied with polyester containing reactive H atoms from a tank 4 and pump 5, mixed by an agitator 3 with poly-iso-cyanate from a tank 7, pump 8 and injection nozzles 10.  The polyisocyanate injected under pressure forms a fine stream in the viscous ester with which it is mixed and is then discharged through pipe 11 into a cylinder space 14.  The piston 13 forces the mixture through conduits 17 into a pipe 18 with turbulence, and into which a cross-linking agent and a catalyst are supplied from a vessel 19.  The resulting mixture is discharged through a bore 23 to a pipe 24 mounted above shaping moulds 26.  The cylinder space 14 is then scavenged with polyester admitted from a tank 27.  U.S.A. Specifications 2,620,516, 2,621,166, 2,729,618 and 2,764,565 are referred to.
Patent GB-541927-A (GB)
Title: A circuit arrangement for obtaining a control voltage for controlling the gain of a thermionic amplifier
IPC: H03G7/02
Filed: 1940-10-07
Abstract: 541,927. Automatic volume control KOLB, O.K. (Electrical Fono-Films Co., Aktieselskab). Oct. 7, 1940, No. 14976. [Class 40 (v)] A circuit comprising a square law rectifier coupled through a second rectifier to a filter with a slow discharge time produces a smoothed control voltage which is free from audible modulation and proportional to the loudness of the signal. In Fig. 6 the signal is applied through a square law rectifier Eo and resistance R1 to a condenser Cl across the load resistance R2 of which is coupled through a rectifier E1 a condenser C2 which is discharged at a constant rate through a pentode P. A condenser C3, across which the control voltage appears, receives a proportion of the voltage across R2 through a rectifier E2 and is connected by a blocking rectifier E3 to the anode of P. With this arrangement the condenser C3 does not discharge until the voltage across C2 has fallen below that of C3 when C3 discharges through P. This effectively removes any audible modulation. A circuit including the elements 'C4, E4, R3, B provides that a voltage dependent on the amplitude of the signal is added to the steady bias B of the grid G thus ensuring that the discharge current through P varies with the signal amplitude.
Patent GB-1218079-A (GB)
Title: Improvements in x-ray tubes
IPC: H01J35/10
Filed: 1968-03-28
Abstract: 1,218,079. Graphite. COMPAGNIE GENERALE DE RADIOLOGIE. 28 March, 1968 [28 March, 1967], No. 15029/68. Heading C1A. [Also in Division H1] The rotating anode of an X-ray tube comprises a dense fine-grain refractory graphite structure with an X-ray emissive band of refractory material, e.g. W or Re or their alloys, formed thereon. The graphite body, which is formed by compressing and heating fine graphite grains almost to sintering such that individual grains merge or weld, i.e. "pseudovitrifying", has a high density, an expansion coefficient similar to that of the refractory metal band, a specific gravity of 1À85 gm./cm.<SP>3</SP>, low porosity and high purity. The W or Re layer may be applied electrolytically or pyrolytically. The width of the band of emissive material is preferably equal to width of the focal spot of the impinging electrons.