baber/WOPTO huggingface dataset:
Patent GB-804621-A (GB)
Title: Improvements in or relating to electromagnetic pumps
Inventor: FORTESCUE PETER
IPC: H02K44/04
Filed: 1955-08-29
Abstract: 804,621. Dynamo - electric machines. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. Aug. 24, 1956 [Aug. 29, l955], No. 24715/55. Class 35. "Converting electric energy into motion of fluids by the action of magnetic fields."-An electromagnetic interaction pump comprise an axial duct 4 within the three poles 2a, 2b, 2c of a three-phase circular core energized by phase coils 6a, 6b, 6c. The duct has a central core 3 and is provided with electrodes 5a, 5b, 5c connected in delta to single-turn secondary windings 7a, 7b, 7c. By this arrangement the circumferential current in the duct is in phase with the flux across the duct. In a modification, the central core is dispensed with and the poles are shaped to produce a three-limbed duct at whose extremities, the electrodes are placed.
Patent GB-1210948-A (GB)
Title: Improvements in or relating to plastics members for attaching to an apertured strip
Inventor: OHLSSON JARK-ERIK SVANTE IVAN
IPC: B29C65/60
Filed: 1968-05-24
Abstract: 1,210,948. Straps. J. E. S. I. OHLSSON. 24 May, 1968 [2 June, 1967], No. 24799/68. Heading A4X. [Also in Division B3]  A plastics sheet 1 with integral tubular projections 4 is secured to an apertured metal strip 2 by inserting a pin 7 into the blind bore 5 of each projection and deforming the end 4<SP>1</SP> of the projection by a tool 6. The plastics sheet may be the back of a binder or strap.
Patent GB-249379-A (GB)
Abstract: 249,379. Bliss, J. June 26, 1925. Measuring-devices.- A petrol pump or like liquid container is provided with a cylindrical housing 10 and a hood 12 formed respectively with apertures 13, 14, which may be brought into register giving access to the pump. The lower edge of the hood rests on laterally projecting rollers 15 while a lug 18 on the hood 12 may be locked to a lug 17 on the housing 10 when the apertures 13, 14 are out of register. A chain 20 is provided to prevent unauthorised removal of the housing.
Patent GB-481572-A (GB)
Title: The manufacture of tanning materials
IPC: C14C3/08
Filed: 1936-09-14
Abstract: Tanning-agents are obtained by the interaction of (a) ligninsulphonic acid or its salts, or sulphite-cellulose lye, (b) an aromatic hydroxy compound containing either a single aromatic nucleus or two or more directly connected aromatic nuclei, and (c) formaldehyde, a substance which yields formaldehyde, acetaldehyde, benzaldehyde, crotonaldehyde or furfural, the reaction being effected under such mild conditions that no water-insoluble products are formed.  For this purpose, the reaction mixture must have an "acid value" of at least 9, preferably about 20, the "acid value" being defined as the amount, in ccs., of normal sodium-hydroxide solution necessary to neutralize 10 g. of the reaction mixture.  The necessary acid value may be established by addition of an acid or a reagent which yields an acid, e.g. sulphuric, hydrochloric, phosphoric, formic, trichloracetic, or p-toluenesulphonic acid or phosphorus oxychloride; alternatively, the necessary acidity may be attained, wholly or in part, by using free ligninsulphonic acid as a starting material.  In the examples: (1) sulphite-cellulose lye, cresol and acetaldehyde are condensed in the presence of hydrochloric acid; (2) sulphite-cellulose lye, phenol and formaldehyde are condensed with addition of phosphorus oxychloride or (example 3) sulphuric acid; (4) sulphite cellulose lye, o-chlorophenol and formaldehyde are condensed in the presence of hydrochloric acid; (5) and (6) as in example 3, but under different conditions; (7) beechwood sulphite cellulose lye containing calcium salts is boiled with oxalic acid and filtered; the filtrate is concentrated and then treated with phenol and formaldehyde without further addition of acid; (8) as in example 7, except that sulphuric acid is used in place of oxalic acid; (9) a ligninsulphonic acid solution prepared as in example 7 is treated with resorcinol and benzaldehyde.  Other specified aromatic hydroxy compounds are xylenols, naphthols, phenolsulphonic acids and salicylic acid.
Patent GB-811588-A (GB)
Title: Improvements in stoves and other burner apparatus using a combustible gas liquefied under pressure
IPC: F24C3/14
Filed: 1956-08-16
Abstract: 811,588. Portable stoves. DESSINS ETUDES OUTILLAGE MECANIQUE, D.E.O.M. S.A. Aug. 16, 1956 [Oct. 4, 1955] No. 25125/56. Classes 75(1) and 126 In a burner apparatus having a gas intake head 6 with a piercing means, e.g. a needle 16, and using a combustible gas liquefied under pressure and contained in a sealed container 3 having a perforatable wall, the gas container is removably disposed in a support 1 having a sleeve 2 adapted to receive the gas intake head 6 of the burner and to bring the head into gas tight engagement with the container. The support 1 is in the form of an inverted cup having a frusto conical bottom and the cylindrical sheet metal container is secured in the support by spring clips 4 pivoted to the support and having hooked ends adapted to engage the lower edge 3b of the container. The sleeve 2 is screwthreaded and is welded in a hole in the bottom of the support. The gas intake head 6 screws into the sleeve 2 and has a slidable plunger 13 projecting downwardly below the head to terminate in a cup part carrying a rubber ring 15 having a lower frusto-conical face. The plunger has a gas tight seal and its downward movement in the head is limited by a pin 18 in the head. The needle 16 for piercing the gas container is flat and is slidably disposed in a bore in the plunger and has a T- shaped head 16b engaged with clearance in a depression 6c in the head. A coil spring 17 is interposed between the head 16b and the plunger 13. In operation the head is screwed into the sleeve and the rubber ring 15 engages in a central depression 3a in the domed top of the container. Further screwing compresses the spring 17 and causes the point of the rotating needle to pass through the centre of the rubber ring 15 and pierce the top of the container. The gas then escapes from the container and passes upwardly through the bore in the plunger and then through a manually operated needle valve 7 at the top of the head to a nozzle 9 mounted on the head and carrying an apertured sleeve 10 supporting a burner cup 11. The burner apparatus also includes an open ended cylindrical outer casing 19 the lower end of which is slidably engaged on the support 1 and has a beaded edge engaging in depressions in the clips 4. The upper end of the casing 19 is closed by a cupshaped member 20 having a cylindrical downward extension 20a with a flange 20b at its lower edge. A saucepan support is formed by three vertical rods 21 passing through holes in the member 20 and the flange 20b, the upper part of each rod being bent to produce upper and lower horizontal portions 21a, 21b. The lower horizontal parts 21a have depressions adapted to rest on the edge of the member 20. The rods can be rotated and lowered into the member 20 when not in use. A cover 22 fits on the top or the bottom of the casing 19.
Patent GB-1307412-A (GB)
Title: Centrifugal pump
IPC: F04D7/04
Filed: 1970-05-26
Abstract: 1307412 Centrifugal pump A R WILFLEY & SONS Inc 26 May 1970 [9 Dec 1969] 25127/70 Heading F1C In a centrifugal pump for slurries, a plate 34, Fig.2, disposed between inlet housing 30 and impeller-containing casing 32, has a first annular lip 50 arranged to discourage secondary circulation between the impeller 20 and the plate 34, and has a second annular lip 54 having inclined surfaces 56, 58 arranged to deflect slurry into the volute portion of the casing 32 to reduce abrasion of the local casing parts by the slurry. The front shroud of the impeller has sealing vanes 26. In an alternative embodiment, Fig.4 (not shown), the impeller (20<SP>1</SP>) has no front shroud.
Patent GB-249423-A (GB)
Title: Improvements in thermometers or the like
IPC: G01K17/02
Filed: 1925-10-09
Abstract: 249,423. Clorius, O. T. Oct. 9, 1925. Thermometers.-The evaporation of a volatile liquid over a more or less prolonged period is utilized to indicate the mean temperature in a room, hotwater system, &c. during that period. In the form shown in Fig. I. a tube 2 mounted on a plate 1 contains the liquid and its open mouth is covered by a perforated cap 4 through which the vapour escapes. The plate 1 is marked with a temperature scale 7 and with a mark 8 to which the liquid is initially filled. Fig. V. shows another form in which the liquid-containing vessel 27 rests on a shelf 26 on a plate 25. A narrow tube 31 above the liquid surface dips into the upper end of a tube 29 the lower end of which passes into the liquid. The apparatus is enclosed by a perforated screen 32 and the temperature is indicated by the level of the liquid in the tube 29.
Patent GB-537333-A (GB)
Title: Improvements in or relating to manganese alloys
IPC: C22C28/00
Filed: 1939-09-08
Abstract: 537,333. Alloys. ABBEY, A. (Consolidated Mining and Smelting Co., of Canada, Ltd.). Sept. 8, 1939, No. 25430. [A Specification was laid open to inspection under Sect. 91 of the Acts, June 24, 1940.] Drawings to Specification. [Classes 72 and 82 (i)] Alloys having ductility when quenched and annealed and having high vibration damping capacity comprise at least 60 per cent. of manganese alloyed with copper, with or without nickel, and with or without minor proportions of one or more of the metals zinc, tin, aluminium, and chromium, the manganese containing less than a total of 0.05 per cent. of carbon and silicon. De-sulphurization' of the manganese.may be effected by means of compounds or alloys of calcium, magnesium, or lithium. Hardening may be effected by quenching from 1100‹C. followed by reheating for two hours at 700‹C. and quenching; or slower quenching may be effected in oil or air. Cold working may be interposed between quenching and reheating. Case-hardening may be effected by heating in ammonia at 500‹C. Specifications 526,029, 526,033, and 526,093 are referred to. Reference has been directed by the Comptroller to Specifications 526,029, 526,033 and 526,093.
Patent GB-613992-A (GB)
Title: Improvements in and relating to the preparation of physiologically active chemical compounds
IPC: A61K31/00
Filed: 1945-10-01
Abstract: A substance having the physiological activity of folic acid is prepared by causing an organism selected from the group consisting of Streptococcus lactis, Streptococcus faecalis and Streptococcus zymogens to act in an aqueous solution of rhizopterin (a pterin-like acidic body obtained from fumaric acid fermentation liquors) at 30-40 DEG  C. in a substantially oxygen free atmosphere.  Growing and resting organisms may be used.  In the former case a nutrient medium is employed comprising in addition to rhizopterin assimilable sources of carbon (e.g. sugars such as glucose and levulose and the glucoside salicin), nitrogen e.g. amino acids (such as cysteine and adenine), minerals (e.g. manganese, iron and magnesium sulphates; potassium monodiphosphates) and vitamins (e.g. water soluble B group). With a suitable initial concentration of rhizopterin the bulk of the folic acid will be found outside the organism cell and may be obtained therefrom by centrifuging the culture.  With resting, fully-grown organisms it is thereby necessary to treat the cells, preferably buffered at pH8, in an aqueous solution of rhizopterin containing glucose and through which an inert gas is passed, and to centrifuge off the cells, which can be used as such or the folic acid obtained therefrom by autolysis and subsequent purification.ALSO:A substance having the physiological activity of folic acid is prepared by causing an organism selected from the group consisting of Streptococous lactis, Streptococous faecalis and Streptococous zymogens to act in an aqueous solution of rhizopterin (a pterin-like acidic body obtained from fumaric acid fermentation liquors) at 30-40 degrees in a substantially oxygen free atmosphere.  Growing and resting organisms may be used.  In the former case a nutrient medium is employed comprising in addition to rhizopterin assimilable sources of carbon (e.g. sugars such as glucose and levulose and the glucoside salicin), nitrogen (e.g. amino acids such as cystine and adenine), minerals (e.g. manganese iron and magnesium sulphates; potassium monodi-phosphates) and vitamins (e.g. water soluble B group).  With a suitable initial concentration of rhizopterin the bulk of the folic acid will be found outside the organism cell and may be obtained therefrom by centrifuging the culture.  With resting, fully-grown organisms it is merely necessary to treat the cells, preferably buffered at pH8, with an aqueous solution of rhizopterin containing glucose, through which an inert gas is passed and to centrifuge off the cells, which can be used as such or the folic acid obtained therefrom by autolysis and subsequent purification.
Patent GB-742151-A (GB)
Title: Industrial heating furnaces
IPC: F28D7/12
Filed: 1953-09-15
Abstract: 742,151. Furnace recuperators. HAZEN, F. DE F. Sept. 15, 1953, No. 25493/53. Class 64(1). A recuperator associated with an industrial furnace comprising a long heating chamber having charging and discharging openings at opposite ends comprises transverse rows of removably suspended heat-exchange tubes 10 arranged in a waste gas flue 4 which extends parallel to the heating chamber 1 from a connection to the latter adjacent its charging end to an exhaust flue 8 adjacent its discharging end, the tubes in adjacent rows being staggered. The tubes are field tubes opening into lower and upper headers 16, 17 through which air for combustion is supplied and delivered. The outer tubes may be of stainless steel. Baffles 7, a blower outlet 9, peep holes 20, and doors 21 for cleaning are provided.
Patent GB-648655-A (GB)
Title: Welding wires of chromium alloyed steel for hard, tough and wear resistant weld-deposits
IPC: B23K35/30
Filed: 1948-09-30
Abstract: Welding wires or rods, for the production of hard, tough, wear-resistant deposits by gas-welding, atomic hydrogen process welding or electric arc welding have the following composition: C 0.35-0.7 per cent, Cr 3.5-7.5 per cent; Fe, with the usual impurities, the remainder.  The Fe used as base material for the production of the wires may contain 0.3-1.5 per cent Si and 0.3-0.8 per cent Mn.
Patent GB-190792-A (GB)
Title: Improvements in and relating to fluorescent screens
IPC: G21K4/00
Filed: 1921-09-27
Abstract: 190,792. British Thomson - Houston Co., Ltd., (General Electric Co.). Sept. 27, 1921. Fluorescent screens.-Fluorescent screens free from voids and roughness of surface, and not readily scratched, are produced by mixing finelydivided fluorescent material with a fraction of its weight of a binding material such as celluloid or other cellulose compound and a suitable solvent, bringing the mixture by evaporation to a consistency too stiff to pour, and shaping it mechanically to sheet form, as by rolling or cutting. In an example given, the screen material comprises 80 to 90 parts of calcium tungstate incorporated with 20 to 10 parts of pyroxylin, with or without the addition of camphor, a small quantity of solvent such as amyl acetate, methyl acetate, &c. being added to produce a plastic mass.
Patent GB-428855-A (GB)
Title: Improvements in or relating to protective coatings for preventing the oxidation of heated metal
IPC: C23C26/00
Filed: 1934-09-13
Abstract: Metals are protected against oxidation at high temperatures by first applying a layer of nickel by hot rolling and then applying aluminium, for example by dipping or spraying.  In an example, iron or steel is coated with a layer of nickel 0,008 inches in thickness by rolling at about 800 DEG  C.  Aluminium is then sprayed on to a thickness of 0,002 inches.  The coated article is then heated to about 1000 DEG  C. to form a nickel-aluminium alloy at the surface. The special heat-treatment may be omitted when the articles attain the alloying temperature in use.
Patent GB-872298-A (GB)
Title: Improvements in or relating to roller bearings
IPC: F16C33/54
Filed: 1957-08-15
Abstract: 872,298. Roller bearing cages. TORRING- TON CO. Aug. 15, 1957 [Oct. 10, 19561, No. 25731/57. Class 12 (1). A roller bearing cage comprises circular end portions 16 connected by narrow resilient bars 17 of constant width having central offset portions 19 of reduced diameter which limit inward radial movement of the rollers 14. Offset portions 18 adjacent the ends 16 serve to guide the rollers 14. An outer race 11 has radial ends 12 and flanges 13 for retaining the cage and housing lubricant. In a modification, an outer race 21 is formed with inwardly extending ends 22 and a cage 23 has circular ends 24 and central portions 26 of reduced diameter. The cage may be formed from tubular material or from flat material. In the latter case, the cage is held together by end collars.
Patent GB-1442702-A (GB)
Title: Expansible fastener socket
IPC: F16B13/12
Filed: 1974-06-11
Abstract: 1442702 Anchor bolts; screw sockets HILTI AG 11 June 1974 [5 July 1973] 25745/74 Heading F2H An anchor bolt (Fig. 2) or a screw socket (Fig. 4) includes a radially expansible tubular shell comprising two sections 1, 2 or 15, 16 which are mutually displaceable axially of the shell and which contact one another along two pairs of surfaces, one pair 1b, 2b extending parallel to the axis of the shell and the other pair 1a, 2a extending helically about the axis such that an axial compression of the shell either between bolt head 4 and nut 6 or by a wood screw (not shown) the shell expands radially over its entire length. The angle of pitch of the helix is preferably between 40 and 75 degrees. The bolt 3 may have a reduced section 9 to enable its projecting portion to be broken away after anchoring. The shell may have a threaded bush (13) welded to the leading end of one of the shell sections (Fig. 3, not shown), a leading end (19a) of reduced internal diameter in which a wood screw can cut a thread (Fig. 5, not shown), or a bent over leading end portion deformation 15a defining an elementary thread for engagement by a wood screw (Fig. 4). A wire ring, spring ring or adhesive band 17 may be used to hold the shell sections together before expansion.
Patent GB-616116-A (GB)
Title: Improvements in the production of cutting tools and in cutting tools
IPC: B23B27/18
Filed: 1946-08-28
Abstract: 616,116. Making cutting tools. BOLD, H. Aug. 28, 1946, No. 25752. [Classes 83 (ii), 83 (iii) and 83 (iv)] Drills and cutters; powder metallurgy.- Cutting-tools are produced by mounting a carbide blank in the chalk stage on a mandrel by means of a spigot-and-socket connection, machining the blank whilst on the mandrel, removing the blank from the mandrel, sintering the machined blank to convert it to a cutting head and then mounting the head on a suitable shank by aid of part of the spigot-and-socket connection. A rotary cutting-tool is produced by moulding and preliminary sintering at low temperature a block of tungsten &c. carbide, then drilling and tapping a countersunk hole 2 and mounting the block on a spigot 5 on a mandrel 4. The block 2 is then machined and removed from the mandrel and sintered at a high temperature to form the cutting head. The head is then mounted on another mandrel of smaller diameter and secured by brazing. The spigot may be formed on the cutting-head. The spigot or socket on the blank may be formed as a tap or die for screw-cutting the mandrel and the socket connection may be formed of tapered or angular cross-section.
Patent GB-587650-A (GB)
Title: Improvements relating to domestic boilers
IPC: F24H1/26
Filed: 1944-12-22
Abstract: 587,650. Hot-water boilers. GAS LIGHT & COKE CO., EATON, F. J., and WILLS, D. R. Dec. 22, 1944, No. 25786. [Class 64 (i)] [Also in Group XI] A water heater primarily for domestic purposes and adapted to be fired alternatively or at the same time by solid fuel and gas, has separate combustion chambers for the solid fuel and the gas situated wholly or largely within the waterway or waterways of the water heater, separate flues leading from said chambers to a common outlet duct, a change-over valve by means of which either of said flues may be isolated from, or both of said flues may be left in communication with, the common outlet duct and a down-draught diverter positioned in the flue between the gas combustion chamber and the change-over valve. The gas fired unit, similar to that described in Specification 587,662 consists of burners 22 projecting through an air slot in a plate 23 with holes 23a providing additional air, a flue 28 equipped with fins 30 and a removable firebrick baffle 29. Flues from the two units lead into opposite sides of a common duct 32, where positioning of the changeover damper 35 may close either of the flue ways, or leave both open. With the damper 35 in position for gas heating, baffles 39 direct flue gases to louvred openings 38 during a "downblow." Specification 568,416 is referred to.
Patent GB-353740-A (GB)
Title: Improvements in ventilators
IPC: F23L17/10
Filed: 1930-08-29
Abstract: 353,740. Ventilators. SIMMONETT, W. E., 26, Murray Road, Sheffield. Aug. 29, 1930, No. 25810. [Class 25.] A ventilator comprises a T- shaped body a rotatably mounted on a pivot band having at one end an internal cone e with an aperture h and an external cone c with aperture D and at the other end a wind vane g fixed across the aperture of the body.
Patent GB-1378541-A (GB)
Title: Foamed thermoplastic films having a grain-like finish
IPC: B29C44/56
Filed: 1973-05-22
Abstract: 1378541 Compressing heated foamed films IMPERIAL CHEMICAL INDUSTRIES Ltd 22 May 1973 [2 June 1972] 25863/72 Heading C3C A grain-like finish is applied to a foamed film of a synthetic thermoplastic material by passing the film between a pair of heated nip rolls, the spacing of the nip being 30-80% of the thickness of the film whereby the film is compressed and the cell structure is deformed, and the film surface is heated to a temperature at which shrinkage of the surface of the film occurs thereby preventing total recovery of the cell structure. The foamed film may be an open-celled film formed of a mixture of low and high density polyethylenes and carbon black.
Patent GB-1475522-A (GB)
Title: Filtering method and apparatus
IPC: B01D46/04
Filed: 1974-06-11
Abstract: 1475522 Gas filter SUMMIT FILTER CORP 11 June 1974 [15 June 1973 26 Feb 1974] 25884/74 Heading BIT A gas filter comprises a housing 70 enclosing a filter bag of re-entrant form whose outer cylindrical portion 80 is supported by an internal cage (82) and has an upper flange supported on internal flange 102 of the housing, the bag being made of natural or synthetic (examples) cloth or felt. The bag may be integrally formed or the flat annular connecting piece at the bottom may be sewn to the inner and outer bag portions. In Fig. 3 the inner bag portion has a flattened closed end slidably supported by a wire 108 secured to the cage. Wire 108 incorporates a spring and holds the inner bag portion under tension so that it vibrates during reverse flow cleaning by pulsed gas. Ring 106 prevents the inner bag portion from collapsing. In Figs. 1, 2 (not shown), the inner bag portion is cylindrical and the bag mounting includes a venturi nozzle enclosing a tapered diffuser (50), and cleaning is by reverse flow. The housing floor is unscrewed to remove dust.