baber/WOPTO huggingface dataset:
Patent GB-1465872-A (GB)
Title: Shaping sheets of heat softenable material
IPC: C03B23/02
Filed: 1975-05-01
Abstract: 1465872 Shaping sheets PPG INDUSTRIES Inc 1 May 1975 [2 May 1974] 18153/75 Heading B5A [Also in Division C1] A sheet of heat-softenable material is shaped by passing it between two sets of segmented forming rolls, moved to sandwich the sheet, wherein opposing segments of the rolls have a complementary surface curvature in the direction of the rotational axis of the rolls and the rate of rotation of preselected segments of the rolls of each set is independently controlled so that the absolute sum of the differences in average peripheral speed of co-operating segments is kept low enough to avoid scuff marks on the roll formed sheet. In Fig. 2 there is shown the sheet G<SP>1</SP> with the rolls 35 and 56 in the disengaged position, whence the lower roller is raised by the action of piston 40 and the rollers (which are made of a low conductivity material, unreactive with the heat softenable material and of low coefficient of expansion), keyed to shaft 34 or 57 are driven by independent motors 90 and 94 so that the relative speed of rotation of the rollers may be varied. The input rollers 24 (Fig. 1) in the furnace section 20 may be of stainless steel, those 25 at the start of the shaping section may be of stainless steel covered with a glass fibre sleeves and a sensor 23 (e.g. an IR or UV sensing device) is used to sense the presence of a sheet and start the rolling process. The cooling section 22 may be provided with nozzles 89 for cooling the sheet by an air blast.
Patent GB-516350-A (GB)
Title: A new or improved air purifying apparatus
IPC: F24F8/133
Filed: 1938-06-20
Abstract: 516,350. Washing air. WILDISH, F. W., and FINDLAY, W. J. June 20, 1938, No. 18212. [Class 55 (ii)] [Also in Group X] Air contaminated with poison gas is passed by a pump 16 up a tower down which flows a decontaminating liquid spread uniformly over spaced wire net packing ; the gas passes through a coke packing 41 in a drying tower 14 and through an absorbent charcoal filter 44 to a fan 17 delivering it under pressure to a room or enclosure such as a breathing apparatus. The liquid is recirculated in the tower by a pump 22 to a spray comprising a circular disc 25 held by a spring-pressed stem 26 in the opening of a liquid distributor 24 so that liquid passes out radially into cylinders 30 of fine wire netting, whence it falls through perforated metal cones 31, 32 and through a coke packing 33. and perforated cone 36 which may be similar sprayed with liquid. At the top of the tower is a sponge filter 38. The air may enter tangentially and pass in succession through washing towers with different decontaminating liquids. Cold water may be sprayed at 43 in the drying tower or cooling apparatus may be placed therein to assist in drying the gas. Chlorine may be added to air containing mustard gas before washing. Steam or ammonia may be added to the air, which is washed with oils, spirits or acidulated or alkaline water. The coke may be replaced by charcoal, asbestos, glass wool, pumice, earthenware, gauze or wood blocks or gratings.
Patent GB-102971-A (GB)
Title: Improvements in or relating to Electrodes for Searchlights.
Inventor: SPERRY ELMER AMBROSE
IPC: H05B31/00
Filed: 1916-12-22
Abstract: 102,971. Sperry, E. A. Dec. 22, 1915, [Convention date]. Arc lamps.-In a search-light or the like, an intensely luminous flame 5, having a high resistance but reduced anode potential drop, is produced by employing a positive electrode 13 of pure carbon cored with vaporizable material, the current and current density in this electrode being such as to give the flame a velocity and pressure sufficient to cause it to issue from the crater. The flame is confined to the neighbourhood of the crater by a distinct flame d of smaller resistance and luminosity evolved by the negative electrode 4 With a current of 150 amperes and a positive electrode of about 16 mm. diameter, an arc 7/8 in. long can be produced. Smaller currents can, however, be used if the density is increased; for instance, 90 amperes with an 11 mm. electrode, and 80 amperes with an 8.5 mm. electrode. Suitable vaporizable materials for the positive electrode are the fluorides of cerium and other rareearth metals, which may constitute 40-60 per cent. of the core. On account of the greater fall of potential from the sheath than from the core, the carbon forms a crater, the bottom of which is masked by the more highly luminous flame above it. The positive electrode 13 may be rotated. A ring of graphite may become deposited on the edge of the crater. Oxidation may be diminished by a refractory sleeve close to the tip of the electrode ; otherwise a larger electrode is required, to allow for tapering. In order to control the direction of the negative flame, the negative electrode is preferably provided with a core 10 of readily vaporizable material such as alkali chlorate or borate, which causes a small crater to be formed. The velocity of the negative flame depends on the magnitude of the current, and not on the current density, and should exceed that of the positive flame. It is preferred, in order to minimize shadow, to use a thin negative, which may be coppered. A suitable angular position for the electrodes is shown Specification 100,781 is referred to.
Patent GB-177450-A (GB)
Title: Improvements in or connected with pneumatic tyres
IPC: B60C5/04
Filed: 1921-07-07
Abstract: 177,450. Goble, B. G. July 7,1921. Air tubes and chambers.-An inner tube 5 of the compression type has one or both side walls fomed with a median annular depression 16. In its deflated condition the tread portion of the tube 15 is of a curvature equal to or greater than that of the corresponding inner portion of the casing, and its inner periphery is of greater circumferential length than the rim 8 so as to be clear of the tyre beads as shown.
Patent GB-728602-A (GB)
Title: A process for the synthesis of hydrocarbons and oxygen-containing organic compounds
IPC: C07C1/10
Filed: 1952-07-21
Abstract: Hydrocarbons and oxygenated compounds are prepared by contacting a mixture of carbon monoxide and water vapour in a ratio by volume of at least 2, preferably 2-3 : 1, at 150-350 DEG , preferably 180-280 DEG  C. and 1-100 atmospheres, with a catalyst of which the main metallic constituent is iron, cobalt, nickel or ruthenium present to the extent of at least 50 per cent as a nitride.  The metals, if in the form of oxides, may be reduced, preferably with hydrogen, and then reacted with ammonia, or hydrogen and ammonia may be used together avoiding the presence of carbon monoxide sufficient to form appreciable ammonium carbamate. Promoters which may be incorporated are alkali and alkaline earth compounds; difficultly reducible oxides such as thoria and ceria; alumina and chromia; compounds of Mn, V, B, Cu, Ni, Ag and Au. Carriers may also be used.  The space velocity expressed as vols. of gas/vol./hr is preferably 9-14 times the synthesis pressure expressed in atmospheres.  The water may be injected in the liquid state at one or more positions in the reactor and serves to dissipate the reaction heat.  The catalyst may be used as a fixed bed, or a suspension in oil or in the gas stream. Multi-stage operation or recycling may be used.  Carbon dioxide produced may be reduced to monoxide for re-use.  Hydrogen may also be added to react with carbon monoxide.  In an example, an alkalized Fe-Cu catalyst is treated with hydrogen at 400 DEG  C. for 3 hours and then with ammonia at 300 DEG  C. to form a catalyst which is 50 per cent nitride, formula Fe1.8N. A CO-H2O vapour mixture, ratio 3 : 1.25, is passed over this for 300 hours at 230 DEG  C. and 10 atmospheres.  Specification 707,972 is referred to.ALSO:A catalyst for synthesis of organic compounds from carbon monoxide and water vapour, with or without hydrogen, contains iron, cobalt, nickel or ruthenium as the main metallic constituent present to the extent of at least 50 per cent. as a nitride.  The metals, if in oxide form, may be reduced, preferably with hydrogen, and then reacted with ammonia, or hydrogen and ammonia may be used together.  Promoters which may be incorporated are alkali and alkaline earth compounds; difficulty reducible oxides such as thoria and ceria; alumina and chromia; compounds of Mn, V, B, Cu, Ni, Ag, and Au.  Carriers may also be present.  The catalyst may be used as a fixed bed or suspended in oil or the gas stream.  In an example, an alkalized Fe-Cu catalyst is treated with hydrogen for 3 hrs. at 400 DEG  C. and then with ammonia at 300 DEG  C. to form a catalyst which is 50 per cent. nitride, formula Fe1,8N.
Patent GB-530494-A (GB)
Title: Improvements in or relating to device for spraying sheets
IPC: B41F23/00
Filed: 1939-06-26
Abstract: 530,494. Printing machines; air pumps. TURNER, T. June 26, 1939, No. 18567. Convention date, April 13. [Class 100 (ii)] [Also in Group XXVIII] The air supply of a device for spraying freshly printed sheets with a material to prevent setoff, is obtained from a variable stroke pump 7, the. piston rod 10 of which is actuated by a moving part, e.g. the reciprocating impression cylinder carriage 12, of the printing press. A latch 15 pivoted to the rod 10 has connected thereto a rod 17 carrying a slide 18 moving on a guide 19 to which is adjustably secured a stop 20. On the upward movement of the carriage 12, a part 11 secured thereto engages and operates the rod 10 to effect a delivery stroke of the pump. During this movement the latch is caused to engage and hold the part 11 so that the rod 10 is drawn downwardly on the return stroke of the carriage 12 until the slide 18 engages the stop 20 to cause the latch 15 to turn and release the part 11. The spraying device 2 is adjustable along a rod 25 carried by a support 22 vertically adjustable on a rod 21. Specification 478,619 is referred to.
Patent GB-816089-A (GB)
Title: Improvements relating to compression springs, particularly for railroad and tramway vehicle suspensions
IPC: F16F1/40
Filed: 1957-06-12
Abstract: 816,089. Rubber compression springs. SOC. APPLICAZIONI GOMMA ANTIVIBRANTI, S. A. G. A. S.p. A. June 12, 1957 [July 7, 1956], No. 18591/57. Class 108(3) In a rubber spring comprising a pile of circular coaxial rings 1 of resilient rubber alternating with annular metal spacer members 2, the rings 1, are shaped as shown in cross-section so that the stiffness of the spring increases as the spring is compressed. Rib 3 and groove 4 co-operate with. grooves and ribs in the spacer members to centre the rings relative to ther spacers. Other suitable cross sectional shapes for the rubber rings are described and illustrated.
Patent GB-783507-A (GB)
Title: Improvements in or relating to the manufacture of phospho-nitrogenous fertilizers
IPC: C05B11/06
Filed: 1952-07-23
Abstract: 783,507. Fertilizers. SOC. ANON. DES MANUFACTURES DES GLACES ET PRODUITS CHIMIQUES DE ST.-GOBAIN, CHAUMY & CIREY. July 23, 1952 [July 23, 1951], No. 18629/52. Class 111. In the production of a phospho-nitrogenous fertilizer wherein an acid sludge resulting from the attack of nitric acid alone or with other acids on natural phosphate, is directly neutralized by gaseous ammonia to form dicalcium phosphate, the ammoniation is effected by introducing air with the ammonia into the sludge in amounts such as to maintain the sludge at a temperature of 10‹ to 20‹C. below its boiling point. Suitably the quantity of air is 1 to 1À5 times that of the ammonia. A suitable apparatus is shown in the Figure where a vat 1 is provided with an inverted frustoconical funnel 4 open at both ends, in the centre of which is placed an impeller 5. A sludge resulting from the acid attack on phosphate is fed through an opening 2 and ammonia is passed in below the impeller through pipe 6 whilst air is fed through pipe 8 and a perforated jet pipe 9. According to an example, an acid sludge prepared by the nitric acid attack on natural phosphate followed by the elimination of calcium nitrate or the addition of phosphoric acid to bring the molecular ratio of P 2 O 5  to soluble CaO to about 2, is ammoniated with gaseous ammonia together with 1À3 to 1À5 times the quantity of air whereby the temperature of the sludge is maintained at 10‹ to 20‹ below its boiling point from beginning to end of the treatment. Practically all of the phosphate is assimilable.
Patent GB-449841-A (GB)
Title: Improvements in or connected with paint and like brushes
IPC: A46B15/00
Filed: 1935-06-29
Abstract: 449,841. Brushes. BEECHWOOD, Ltd., and WILCOCK, E. A., Bellington Road, Chesham, Bucking- hamshire. June 29, 1935, No. 18658. [Class 19] Paint and like brushes in which the bristles are set in a metal ferrule 1 have separated dome-shaped projections 3 pointing outwards from the ferrule to interlock with the rubber setting.
Patent GB-711470-A (GB)
Title: Improvements in or relating to compounding ingredients for rubber
Inventor: SCHAFER GEORGE
IPC: C08L21/00
Filed: 1950-07-26
Abstract: A compounding ingredient for rubber is made by condensing (1) a polycarboxylic acid or an anhydride or chloride thereof (2) an ester of a hydroxy aliphatic monocarboxylic acid having at least 10 carbon atoms in the acid component and (3) a phenol.  Specified for reactant (1) are oxalyl chloride, succinic acid or anhydride, alkyl or alkenyl succinic acids, fumaric acid, maleic anhydride, itaconic anhydride, aconitic anhydride, adipic acid, sebacic acid, phthalic anhydride, tetrahydrophthalic anhydride, terephthalic acid and naphthalic acid, for reactant (2) castor oil, hydrogenated castor oil, and the alkyl, glycol or glycerol esters of 11- hydroxy undecanoic, 9- or 12- hydroxystearic, 9, 12- dihydroxy-stearic, ricinoleic or ricinelaidic acids or of the hydroxy acids obtained by oxidizing paraffin wax, for reactant (3) phenol, the cresols, the xylenols, allyl phenol, benzyl phenol, 1- and 2-naphthol, phydroxydiphenyl, salicylic acid, cresotic acids, pyrocatechol and its homologues, resorcinol, hydroquinone, pyrogallol and the phenols resulting from the low temperature carbonization of coal, lignite, peat or wood.  Equivalent quantities of acid and hydroxyl groups, or a slight excess of the latter are employed.  Condensation temperatures are 20-100 DEG C. when acid chlorides are used and 100-300 DEG C. when acids or anhydrides are used.  Examples describe the condensation of castor oil and maleic anhydride with, (1)-(4) coal tar fractions boiling at 212 DEG -228 DEG C., 288 DEG -315 DEG C., and 250-400 DEG C.; (6) pyrocatechol; (7) salicylic acid; and (8) hydroquinone.  In example (5) a mixture of castor oil, pure phenol and succinic anhydride is condensed.  The products are compounded with a mixture of rubber, stearic acid, zinc oxide, channel black, sulphur, "Ureka" (Registered Trade Mark), White and polymerized trimethyldihydroquinoline (see Group V).ALSO:A compounding ingredient for natural and synthetic rubbers imparting improved age resistance to the vulcanizates, improving the tack of rubber compositions, modifying their plasticity, imparting shape stability to the uncured compounds and generally aiding milling, calendering and extrusion operations is made by condensing (1) a polycarboxylic acid or anhydride or chloride thereof; (2) an ester of a hydroxy aliphatic monocarboxylic acid having at least 10 carbon atoms in the acid component (especially castor oil) and (3) a phenol.  The Specification contains a list of reactants and eight examples of condensation reactions, (see Group IV (a)).  The condensates are compounded with rubber in a mix comprising also stearic acid, zinc oxide, carbon black, sulphur, polymerized trimethyldihydroquinoline and as accelerator "Ureka" (Registered Trade Mark) White.  The mix is cured in a press at 153 DEG C. and either aged in an oven at 70 DEG C. for ten days or subjected to oxygen ageing for five days at 300 lbs./sq. in.
Patent GB-275210-A (GB)
Title: Improvements in suspension insulators
IPC: H01B17/02
Filed: 1927-07-14
Abstract: 275,210. Brown, Boveri, et Cie, Akt.- Ges. Abteilung Installationen. July 29, 1926, [Conventoin date]. Insulators.-A suspension insulator has the suspension pin or bolt secured in the body of the insulator by means of a supporting member which is inserted in a cavity, formed in the body, between the head of the bolt and a ledge in the cavity, and is then locked in position. The insulator body a, Fig. 1, is formed with the usual cavity b which is provided with an inclined ledge b<2>, and the bolt c is formed with enlargements c<1>, c<2> at its ends. The supporting member consists of a sleeve d<3>, Fig. 2, which has one end tapered and enlarged to form a shoulder 2. The sleeve is slit longitudinally, for almost its full length, thus leaving an annular portion d to which are attached the inclined shouldered portions d<2> with extensions e. The sleeve is placed over the bolt before the head c' is formed. When the bolt is inserted in the cavity b, the sleeve is pushed inwards until the shoulders 2 engage the ledge b<2>, the slits allowing it to be sprung into the cavity and the extensions e serving as handles by which it may be pushed into place. Finally, a sleeve f, made in two parts, is inserted between the stem of the bolt and the extensions e thus locking the sleeve d<3> in position. The ends e' of the extensions e may be bent over, as shown, to keep the sleeve f in place.
Patent GB-357540-A (GB)
Title: Improvements relating to the manufacture of metals and alloys
IPC: C22B9/10
Filed: 1930-06-19
Abstract: A method of carrying out the refining process described in Specification 357,539, wherein iodine vapour is passed through the molten metal or alloy, comprises inserting a cartridge or casing containing the refining material into the molten metal or alloy. The cartridge may be of any suitable material such as cardboard, iron, aluminium or synthetic resin and in one method it is attached to the end of a rod which is inserted in the metal.
Patent GB-201017-A (GB)
Title: Improvements in rotary brushes for cleaning, polishing and like operations
IPC: A46B13/00
Filed: 1922-07-08
Abstract: 201,017. Osborne, C. H., and Jones, G. July 8, 1922. Bristles, fixing; brush stocks.-In a rotary brush of the type comprising a wooden boss a formed at each end with an annular recess b communicating with radial apertures c, within which tufts of bristles d are secured by wiring, tubular sleeve members e of wood, fibre, or the like are inserted in the recess. Before inserting the sleeves, the inner walls of the recesses and the surfaces of the sleeves are coated with glue or other adhesive. The sleeves, if of wood, are preferably such that the grain of the wood is at right-angles to the grain of the wooden boss a. According to the Provisional Specification, the recesses may befilled with cement.
Patent GB-238214-A (GB)
IPC: B21D13/02
Filed: 1925-07-23
Abstract: 238,214. Junkers, H. Aug. 9. 1924, [Convention date]. Posts and columns; rods and bars. - Corrugated sheet metal for flying machines or boats &c. formed with flattened portions so as to facilitate riveting or welding together or to other parts such as bulk heads &c., by first transforming each corrugation into several smaller corrugations. Each corrugation 1 is transformed into two smaller corrugations 4 which are then converted into a flattened edge 3, Fig. 3. In a modification each crest and also each trough are first transformed into two smaller corrugations so that the flattened edge is on the neutral axis between the crests and troughs. In Fig. 5, the small corrugations 4 are acted on to form a flattened rim below the level of the troughs so as to bear tightly against the part to which it is riveted through the troughs. In cases where the corrugations are oblique to the edge of the sheet the small corrugations are similarly formed obliquely. For very large corrugations each may be then transformed into two still smaller ones and so on until the corrugations are small enough to be flattened out. Flat transverse strips. map be produced in the body of the sheet either of oblique, curved or other form, and corrugated circular lids may also be provided with fiat rims. The operation is effected by one pair or successive pairs of swages, which may be wide enough to cover several of or all the corrugations. One pair of swages 11, 12, Fig. 7, may be formed with the required operative surfaces to complete the operation in one stage or in several stages by moving the swages progressively over the sheet from the edge inwards to the first position shown, one pair 13, 14, Fig. 14 or separate successive pairs of swages may be used to produce the small corrugations and a pair 16, 17, Fig. 15 to effect the flattening.
Patent GB-405879-A (GB)
Title: Apparatus for extruding shaped rods and the like
IPC: B29C48/475
Filed: 1933-07-03
Abstract: 405,879. Moulding plastic materials in hopper-and-plunger machines. WERNER, R., and WERNER, O., (trading as CANNSTATTER MISCH-UND KNETMASCHINENFABRIK, CANNSTATTER DAMPFBACKOFEN-FABRIK, WERNER & PFLEIDERER), Cannstatt, Stuttgart, Germany. July 3, 1933, No. 18848. Convention date, July 23, 1932. [Class 87 (ii).] In hopper-and-plunger machines for forming long rods or the like from dough, porcelain mixture, artificial resin and like plastic materials, in which the plunger is advanced by a hydraulic ram, the ram effects an automatic control of valves regulating the plunger movement. As illustrated, the plunger 4 is advanced by a hydraulic ram 7 and is retracted by an adjustable spring 16. An arm 9 on the ram acts automatically through the rod 10 to close the exhaust valve 11 at the end of the return stroke and re-open it at the end of the pressure stroke so that the machine works continuously. Pressure fluid supplied by a pump through the conduit 12 escapes in part past the hand-set valve 14, and is utilized in part to advance the ram. In a modified arrangement of valves for use with an accumulator, two valves are operated automatically by the moving ram so that one is always closed when the other is open. Several plungers may be operated by a common ram and each plunger may carry several dies each operating in a separate mould, while each of the moulds may have several exits.
Patent GB-1123855-A (GB)
Title: Vacuum cleaner
Inventor: WIED JULIUS PAUL
IPC: A47L5/36
Filed: 1967-06-24
Abstract: 1,123,855. Suction cleaners. SUNBEAM CORP. 24 April, 1967 [14 June, 1966], No. 18864/67. Heading A4F. The housing 10 of a suction cleaner comprises two pan shaped shells 18, 19, e.g. of metal, and an intermediate plastics member 20 dividing the housing into suction and exhaust compartments and supporting a suction fan 45 and its driving motor 25. Grooves 76, 77 formed in the member 20 receive the mounting member 75 of a dust bag 27, and an opening 79 for receiving a suction hose connector 80 is formed in the flange 21 of the member 20 which is interposed between the shells 18, 19. Also formed in the member 20 is an exhaust passageway 84 having at its outlet a filter 87 and an exhaust grid 31. A reel 28 carrying an electric supply cord 29 is supported within the exhaust compartment 23, and a foot operated switch 95 controls the electric supply. Within a well 101 formed in the flange 21 is a device 110 for indicating when the dust bag 21 is filled. The device 110 comprises a partly hollow rotary drum having- a solid eccentric portion 111 which normally maintains the drum stationary. When, however, the dust bag 27 is filled the suction increases within the suction compartment 22 into which the well 101 depends and causes air to flow through the well 101, via inlet 115 and outlet 104, at sufficient speed to act upon a spiral vane 114 on the drum 110 to rotate the latter to empose an indication thereon, through a window 107, warning that the condition of the dust bag should be checked. Integral formations 68 to 72 are formed on the plastics member 20 for supporting suction cleaner tools when the apparatus is not in use.