baber/WOPTO huggingface dataset:
Patent GB-124249-A (GB)
Title: Improvements in Dynamo Electric Machines.
IPC: H02K9/06
Filed: 1918-03-08
Abstract: 124,249. Lancashire Dynamo & Motor Co., and Whitmore, H. B. March 8, 1918. Armatures and field magnets, cooling. - A number of airways D, D' are provided between the casing A and the stator core disks C of a dynamo-electric machine, and cooling-air is caused to flow by the use of one or more fans and division plates in opposite directions in alternate airways or sets of airways. The invention is applicable to machines of the protected, totally enclosed, or pipe-ventilated types. The casing A is furnished with a series of ribs a. which are turned to take the core disks C and form two groups of axially-disposed airways D, D<1>, which are divided off by means of plates E provided with flanged portions c<1> - - e<4>. In the protected machine shown, one stream of air enters at the inlet b<4>, passes through the compartment F and the ducts D, and leaves through the outlet b<2>; another stream of air enters at the opening b<5> and traverses the compartment F<1> and ducts D<1>, leaving at the orifice b<3>. In totally enclosed and. pipe-ventilated machines, the cooling-air is caused to flow through the ducts D, D' in series but in opposite directions in alternate ducts or sets of ducts, the arrangement of the division plates being suitably modified.
Patent GB-575203-A (GB)
Title: Improvements relating to door latch or latch and lock actuating mechanisms
IPC: E05B3/06
Filed: 1944-03-04
Abstract: 575,203. Door latches. EVERED & CO., Ltd., and WILSON, A. H. March 4, 1944, No. 4071. [Class 44] In a door-latch operating mechanism wherein in the handle at one or each end of the spindle is associated with an auxiliary spring to aid the latch spring in returning the handles to normal position after retracting the bolt, the spring 15 of known flat coil form is mounted in a circular box-like casing 14 housed in a recess 13a in the rose-plate 13 and held against rotation therein by radial lugs 14a engaging corresponding notches in the wall of the recess. The casing is removable for reversal if necessary according to the hand on which the door opens so that the spring is wound up by the rotation of the spindle in retracting the bolt. A circular cover plate 14e for the casing is rotatable on a recessed seating 14f by the spindle 11 which fits a square hole formed axially through a boss 14d extending from the plate 14e across the casing to take a bearing in a circular hole 14c in the bottom of the casing. Rotation may be limited by a radial lug (not shown) on plate 14e working in a segmental recess 14h in the casing wall. The outer end of the spring is hooked and anchored by a hook projection 14i on the casing wall, the carrier end 15a being anchored in a slot in boss 14d. The handle 12 is secured to the spindle by a pin 16, the spindle and attaching arrangement preferably being as described in Specification 465,364. The handle shank 12a bears only against the outer face of the rose plate, to prevent detachment of the plate from the door by pulling the handle. The invention is particularly applicable to lever handles, or handles and rose-plates moulded from plastic material.
Patent GB-395063-A (GB)
Title: Improvements in the manufacture and production of quinaldines
IPC: C07D215/04
Filed: 1932-02-11
Abstract: Quinaldines are manufactured by heating aromatic or heterocyclic amines or N-substitution products thereof capable of reacting as amines under the working conditions, e.g. acylated amines and azomethines, with crotonaldehyde or compounds capable of forming crotonaldehyde under the working conditions, e.g. aldo, acetaldehyde and paraldehyde, in sulphonic acid solution in the presence of mild water-soluble acid oxidizing agents, e.g. nitrobenzene-sulphonic acid, nitrotoluene-sulphonic acid and arsenic acid.  Suitable amines are aniline, toluidines, chloro- and nitroanilines, anisidine, benzidine and its derivatives such as dianisidine, naphthylamines, naphthylaminesulphonic acids, aminoacridines and their salts. The sulphuric acid employed may be concentrated or dilute, e.g. 20 per cent, and the reaction may be performed at moderately elevated temperatures. e.g. 90 DEG  C. or at 160 DEG  C. or higher, sulphuric acid concentrations of 70-90 per cent and temperatures of 120-150 DEG C. being especially favourable.  Inorganic salts, e.g. ammonium vanadate and zinc sulphate may be added.  In examples: (1) aniline is introduced into a sulphuric acid solution of nitrobenzenesulphonic acid (obtained by heating nitrobenzene with oleum on the water bath) at 125 DEG  C. and crotonaldehyde is added, producing quinaldine ; (2) o- and p-toluidine similarly yield o- and p-toluquinaldine respectively; (3) o-chloraniline is similarly treated, but with the addition of zinc sulphate, producing 8-chlorquinaldine ; p-chloraniline similarly yields 6-chlorquinaldine ; (4) b -naphthylamine is treated as in (1), but with the addition of ammonium vanadate, to produce naphthoquinaldine ; (5) o-chloraniline is introduced into a mixture of concentrated sulphuric acid and arsenic acid, the mixture heated to about 120 DEG  C. and crotonaldehyde added, producing 8-chlorquinaldine ; (6) p-phenylenediamine is treated as in (1) to produce dimethyl-pseudo-phenanthroline ; benzidine similarly yields 2 : 2<1>-dimethyl-6 : 6<1>-diquinolyl ; (7) acetanilide or benzylidine-aniline is similarly treated, yielding quinaldine ; (8) 3 : 6-diaminoacridine similarly yields dimethyldipyridinoacridine ; (9) p-amino-benzoic acid similarly yields quinaldine-p-carboxylic acid ; (10) 1-naphthylamine-6-sulphonic acid is similarly converted into 1 - naphthoquinaldine - 6 - sulphonic acid ; aminonaphtholsulphonic acids similarly yield the corresponding hydroxnaphthoquinaldinesulphonic acids ; (11) o-aminophenol similarly yields 8-hydroxyquinaldine ; (12) 1-naphthyl amine-3-sulphonic acid similarly yields 1(N)-2-naphthoquinaldine - 3 - sulphonic acid, which may be converted by alkali fusion into 3-hydroxy-1(N)-2-naphthoquinaldine.
Patent GB-1413378-A (GB)
Title: Extruders
IPC: B29C48/38
Filed: 1973-01-26
Abstract: 1413378 Tandem screw extruder MITSUBISHI JUKOGYO KK 26 Jan 1973 [28 Jan 1972] 4222/73 Heading B5A A non-foamable resin material is melted by shear during extrusion by a first screw 1<SP>1</SP>, which is of a smaller diameter and rotates at a higher speed than the diameter and speed of a second screw 3<SP>1</SP> to which the resin is delivered from screw 1<SP>1</SP>, the molten resin being delivered at a slower speed by screw 3<SP>1</SP> to an extrusion die 16<SP>1</SP>. The pressure of the molten material delivered by screw 1<SP>1</SP> to screw 3<SP>1</SP> is maintained constant, in a tube 5<SP>1</SP> along which it is delivered, by alteration of the speed of screw 1<SP>1</SP>, via a pressure modulator 14<SP>1</SP> connected to alter the speed of motor 6a<SP>1</SP> in accordance with deviation from a preset pressure, of the pressure in tube 5<SP>1</SP> as measured by a sensor 13<SP>1</SP>. The screw 11 may be rotated at twice the speed of the screw 3<SP>1</SP>, preferably by a separate drive motor 6a<SP>1</SP> and reduction gear 6b<SP>1</SP>. Each barrel 2<SP>1</SP>, 4<SP>1</SP>, of each screw may be provided with electrical heating and water cooling, and the barrel 4<SP>1</SP> may be provided with a vent 17 to which vacuum is applied, and which is not provided in the Fig. 1 embodiment (not shown). The tube 5<SP>1</SP> may be provided with a removable screen 12a<SP>1</SP>. The material is fed to the hopper 151 of screw 1<SP>1</SP> in powder or pellet form. The examples relate to extrusion from a sheet "T" die, of polypropylene and of polystyrene.
Patent GB-540130-A (GB)
Title: Improvements in and relating to electric fuses of cartridge type
IPC: H01H85/157
Filed: 1940-03-06
Abstract: 540,130. Fusible cut-outs. ELECTRIC TRANSMISSION, Ltd., ANDERSON, R. C., HUMPHREYS, I. E.,.and DANNENBERG, K. March 6, 1940, No. 4235. [Class 38 (i)] The end caps of a cartridge fuse are attached and rendered fluid tight by a process of metallization for making or covering the joint. The sheath 1 of the cartridge may be of ceramic or fabric materials or material having a hard paper base and its ends may be grooved at 11 to provide an extended creepage path. In one form caps 2, Fig. 1, are screwed on to a reduced end of the sheath and a packing 3 of litharge interposed at the periphery and rubber washers 9 at the ends of the sheath. An opening 14 in the cap is covered by a thin metal disc 15 through which a pin 13 is arranged to be driven when the fuse blows. Metal 10 is then deposited over the disc, cap and exterior of the sheath as far as the groove 11, a hole 16 being left for the pin 13. In modifications a flanged plug is screwed into the end of the sheath, the flange compressing a washer against the end of the sheath, the flange, washer and adjacent part of the sheath being covered with deposited metal, a cap may be screwed on to a metal band on the end of the sheath and the joint soldered and metallized, a metallized ferrule may be formed on the end of the sheath and a dished plug pressed therein covered by a disc and soldered to the ferrule, or a ferrule pressed on to the sheath end may be soldered to a closure disc and the joints metallized. The metallization process may consist of electrolysis, spraying, platinizing, vaporization, amalgamating &c.
Patent GB-1025086-A (GB)
Title: Process of manufacturing forgings of more than 25 tons by welding two or more component forgings together with the aid of the electro slag welding process
IPC: B23K25/00
Filed: 1963-02-01
Abstract: 1,025,086. Making forgings; altering physical properties; welding by fusion. GEB BOHLER & CO. A.G. Feb. 1, 1963 [Feb. 3, 1962], No. 4274/63. Headings B3A, B3R and B3V. Large forgings of over 25 tons are made by electro slag welding square or rectangular end faces having the same form and area of two or more component forgings, and hot working and forming at least the welded zone to a round cross-section with a reduction in cross-sectional area of at least 5%.
Patent GB-172243-A (GB)
Title: Improvements in or relating to valve apparatus for rock drills and like fluid pressure operated tools
IPC: B25D9/18
Filed: 1921-02-05
Abstract: 172,243. Rayner, G. H. T., and Rayner, P. Feb. 5, 1921. Fluid-actuated gears, without auxiliary valves. In a percussive tool, the fluid supply to the cylinder ends is controlled by the inner edges of a twoheaded valve x, the exhaust being controlled by the piston passing cylinder ports c, d. To throw the valve, its ends are alternately put to pressure and exhaust by ports g, h controlled by the piston. The valve is locked in its end positions by reduced pressure produced by fluid alternately fed by valve-controlled ports m, n to the valve-chest ends which are constantly open to exhaust through bleed ports v, w in the valve-chest plugs, or alternately exhausted through ports g, h, c, d and a groove (not shown) in the piston.
Patent GB-1019719-A (GB)
Title: Process for the production of pure methylnaphthalene
IPC: C10G47/12
Filed: 1964-01-31
Abstract: <PICT:1019719/C4-C5/1> 1-Methyl and 2-methyl naphthalenes aro isolated from hydrocarbon mixtures also containing alkylbenzenes and paraffins by (1) fractionation to remove materials boiling above 490 DEG  F.; (2) hydro-cracking the residue at 1200-1300 DEG  F. in presence of hydrogen and a catalyst comprising 5 to 25% by weight chromia on a high purity g -alumina of low sodium content, e.g. not more than 0.5% by weight of sodium and (3) removing the 1-methyl and 2-methyl naphthalenes from the hydrocracked stock by super-fractionation in a fractionating system having at least 150 theoretical trays.  Suitable starting materials are heavy reformates and cycle oils and the effluent from the hydrocracking step contains naphthalenes, indenes, paraffins and other compounds boiling below 440 DEG  F. and methyl naphthalenes boiling at 450 DEG  to 490 DEG F.  The chromia is preferably in the form of hexagonal crystals.  The methyl naphthalenes obtained have a minimum purity of 99.0%.  As shown in the Figure, starting material is fractionated to remove materials boiling above 490 DEG  F. and the remainder is hydrocracked at 100 to 1000 p.s.i.g. at a space velocity (WHSV) of 0.5 to 2.0 and a hydrogen: hydrocarbon volume ratio of 5:1 to 15:1.  Hydrogen is recycled from the flush drum and after removal of methane in the stabilizer the methyl naphthalenes are separated from other constituents in fractionating towers 1 to 4.
Patent GB-1515823-A (GB)
Title: Electroplating ferrous strip or sheet stock
IPC: C25D3/30
Filed: 1977-02-02
Abstract: 1515823 1515823 Electro-depositing nickel-iron and tin M & T CHEMICALS Inc 2 Feb 1977 [4 Feb 1976] 04328/77 Heading C7B A can shell is formed by passing a ferrous strip or sheet stock continuously through first a Ni-Fe electro-plating bath then a Sn electro-plating bath to electro-deposit respective layers each 0À005 to 5 microns thick, and drawing and ironing. The Ni-Fe plating bath may contain nickel and ferrous sulphate or sulphamate with or without chloride and boric acid, with anodes of the separate metals Ni and Fe e.g. as chunks in Ti baskets covered with cloth or plastics bags. The Sn plating bath may contain stannous sulphate or fluoborate and sulphuric acid. Prior to plating the strip or sheet stock may be anodically alkaline cleaned, e.g. in hydroxide, silicate, borate, phosphate or Na alkyl sulphate solution to remove oil or grease, then immersed in acid e.g. HCl or sulphuric to remove rust.
Patent GB-270027-A (GB)
Title: A new or improved feeding mechanism for blanking and forming presses
IPC: B21D43/05
Filed: 1926-02-16
Abstract: 270,027. Danek, J. Feb. 16, 1926. Rod and bar feeds; blanks; transferring. - In feeding mechanism for use in forming, blanking and drawing-presses of the kind wherein each of a pair of jaws is caused to follow a D-shaped path, the jaws moving together along the straight part of the path for deeding and separating for idle movement along the curved part, the jaws are operated by one or more pins moving in a circular path so that movement along one half of the circle causes the straight motion and movement along the other half the curved motion. When one pin only is used, it is connected with one jaw and the other jaw is operated from the first by pantograph lir.kage. When two pins are used, each pin 7 is mounted on a crank disc 8 and engages a block 6 slidable in a tube 3, slotted at 12 to allow movement of the pin during one half revolution and attached to a jaw 1. Each tube 3 is slidable in a casing 4 which can slide along a guide 5. The jaws are normally retained in the closed position by springs 15 attached at 16 to some fixed part of the mechanism and at 14 to a stop 13, which during one half of the revolution of the pin 7 is engaged by the block 6 so as to open the jaws and give them their curved motion. Both discs 8 are driven simul. taneously by skew gearing from a common driving shaft 11. The mechanism described is stated to be particularly applicable for handling circular articles such as press caps and other metal closures for bottles, jars and other containers, the jaws 1 being provided with semi-circular opposed depressions 2, 2a and 2<b>, so that during a feeding movement a blank is moved from the position 2 to 2a where the forming die (not shown) is situated, and simultaneously a finished blank is moved from 2a to 2b. Any known means may be used for supplying blanks to the feeding mechanism. The Provisional Specification states that dash pots may be used in conjunction with the springs 15 to produce a cushioning effect on the jaws when operating at high speeds.
Patent GB-1448501-A (GB)
Title: Continuous production of polycarbonates
IPC: C08G64/22
Filed: 1974-01-31
Abstract: 1448501 Continuous preparation of polycarbonates BASF AG 31 Jan 1974 [2 Feb 1973] 04472/74 Heading C3R A continuous process for preparing polycarbonates comprises introducing a mixture of an aqueous alkaline solution of an aromatic dihydroxy compound and an aqueous solution of an amine or salt thereof into a first mixing and reaction zone at a speed of from 1 to 50 metres per second, introducing phosgene into the zone at a speed of from 30 to 300 metres per second, condensing the aromatic dihydroxy compound and phosgene in a mainly aqueous alkaline solution to form carbonate oligomers and/or polycarbonate, introducing an organic solvent into the zone at a point located in the half of the zone further removed from the inlet orifices for the aqueous alkaline solution and the phosgene or adjacent to the point of transition into a second reaction zone in such a way that substantially no back-mixing of the organic solvent containing the carbonate oligomers and/or polycarbonate with the aqueous solution takes place, and carrying the condensation of the aqueousorganic reaction mixture to completion in the second reaction zone by the interfacial method. The example describes the preparation of a polycarbonate from 2,2-bis-(4<SP>1</SP>-hydroxyphenyl)- propane wherein the amine is triethylamine and the organic solvent is methylene chloride.
Patent GB-1489553-A (GB)
Title: Steam generator
IPC: F22B1/06
Filed: 1976-02-05
Abstract: 1489553 Steam generators COMMISSARIAT A L'ENERGIE ATOMIQUE 5 Feb 1976 [12 Feb 1975] 04519/76 Heading F4A In a steam generator, an outer casing 1 contains liquid metal which is circulated through a single central supply tube 6 and a plurality of orifices 9, the heat being transferred to a plurality of water tube bundles 20 such that steam is generated therein and is discharged through outlet pipes 27. Radial partitions 18 extend from the central supply tube 6 to form adjacent compartments in the casing 1 into which liquid metal flows through orifices 9. The water tubes 21 in each tube bundle pass through the ends 3 and 4 of the casing 1 and are connected to tube plates 22, 23 in headers 24, 25. A discharge duct 12 for liquid metal is provided with a safety bursting disc 13 to ensure rapid emptying of the compartments in an emergency.
Patent GB-987508-A (GB)
Title: Improvements relating to multi-conductor telephone cables
Inventor: DAVIS HENRY
IPC: H01B11/00
Filed: 1963-02-04
Abstract: 987,508. Water barriers in electric cables. RELIANCE (CORDS & CABLES) Ltd. Jan. 16, 1964 [Feb. 4, 1963], No. 4555/63. Heading H1A. Axial water barriers are formed during the manufacture of an electric cable by introducing water impermeable material between the conductors at intervals along its length. The water impermeable material is injected between the conductors in predetermined axially spaced apart regions from a nozzle 22 upstream of discs 21 and 26 which compress the stranded together assembly of conductors 11 so forcing the material into all the interstices between the conductors and expelling the air. Further conductors may be added in a similar manner with the further water impermeable material injected around the regions already containing material. The total amount of material injected is such as not to increase the mutual capacitance between conductors by more than 10%, preferably 1%, and not to be more than 4% of the total volume of the cable. The material may be petroleum jelly, polyisobutylene or synthetic resins such as polyurethane or polythene. The conductors are covered with a waterproof layer, e.g. a helically applied paper tape impregnated with the water impermeable layer and an outer sheath of polythene may be provided. By having the supply pipes 23 in an axial direction the die plates could rotate so twisting the conductors. A number of cables may be made by the above method and then stranded together with their water barriers radically aligned and within a common outer sheath, further water impermeable material being injected to fill the remaining interstices.
Patent GB-823739-A (GB)
Title: Improvements relating to the formation of phosphate coatings on metal surfaces
IPC: C23C22/23
Filed: 1957-02-11
Abstract: A solution for forming a phosphate coating on metal by spraying comprises a coating phosphate, a nitrite, and an amount of a tripolyphosphate or hexametaphosphate or both less than 0.15g/l.  The coating phosphate is preferably zinc phosphate and the nitrite, sodium nitrite.  With alkali metal tripolyphosphates, e.g. pentasodium tripolyphosphate, 0.01g/l. is sufficient; more than 0.025g/l. of alkali metal hexametaphosphates should be used however. The solution may also contain nitrate and cations having an accelerating action e.g. copper or nickel or both.  It is replenished by adding coating phosphate ingredients, a nitrite, and an amount of tripolyphosphate and/or hexametaphosphate between 0.1 and 0.5g/sq.m. of treated surface, the ratio of nitrite to tripolyphosphate and/or hexametaphosphate being between 4:1 and 20:1.  Coatings may be formed on iron, steel, zinc and aluminium.  Specification 820,657 is referred to.
Patent GB-717121-A (GB)
Title: Improvements in or relating to protective helmets
IPC: A42B3/06
Filed: 1951-02-26
Abstract: 717,121. Helmets. GEORGE, W. A. Feb. 26, 1952 [Feb. 26, 1951], No. 4678/51. Class 63 A protective helmet comprises two separate resilient domed shells 6, 7 of non- metallic hard flexible sheet material disposed one within the other and joined around their edges but spaced by a maximum at the top of the helmet. The shells may be of vulcanized fibre sheet, a thermoplastic material such as rigid polyvinyl chloride sheet or a thermosetting plastic sheet material. The edge of one shell 8, which may be gimped at 8a, may be turned over the edge of the other shell and the parts then secured together, with, if provided, the edge of an internal cap 9, by adhesive and or stitching. Various modified shapes of helmet are described and the two shells may be connected by rivets. The joint may be made air-tight by a sealing compound so that trapped air acts as a resilient cushion. The space between the shells may be filled with resilient material 13, preferably cellular. such as honeycomb paper mesh bonded with synthetic resin.
Patent GB-1413097-A (GB)
Title: Freeze-thaw stable french fry potato product and process for producint the same
IPC: A23L19/10
Filed: 1974-02-01
Abstract: 1413097 Parfried french fried potatoes AMERICAN POTATO CO 1 Feb 1974 [1 Feb 1973] 04788/74 Heading A2B A freeze-thaw stable parfried French fry is made from dehydrated potato particles and raw starch by first preparing a cohesive dough of 23-40% by weight of solids and 60-77% moisture content, the solids comprising by weight 85-95% intact cooked potato cells, 0.5-5% gum binder, preferably guar gum, and 2-15% extra-cellular raw starch obtained from potato, wheat, rice, arrowroot, corn and/or tapioca, the water being added at a temperature of 45-200F; secondly forming the dough into chip size pieces; thirdly, parfrying the pieces in fat at a temperature of 300-370F until the moisture content of the pieces is 40-65% by weight to gelatinize the raw starch and to form a starch matrix throughout the pieces, fourthly, gelling the starch matrix and finally, freezing the parfried pieces. The jelled starch matrix imparts structural strength sufficient to substantially retain piece integrity during optional thawing and final refrying in oil at 350F for about 60 seconds.