baber/WOPTO huggingface dataset:
Patent GB-722433-A (GB)
Title: Antibiotic agent and process for its production
Filed: 1952-02-01
Abstract: A new antibiotic, fluvomycin, is produced by growing a fluvomycin - producing strain of Bacillus subtilis, especially B. subtilis NRRL-B-1324, in a nutrient medium and isolating the antibiotic therefrom.  A medium of initial pH 5.0-9.0 is incubated with submerged aeration at a temperature of 25-37 DEG  C. for 20-28 hours or longer, an anti-foaming agent, e.g. lard oil, being present.  In one example, the medium is water, sucrose, yeat extract, citric acid, ammonium phosphate, sodium sulphate, potassium chloride, magnesium chloride, calcium nitrate, manganese chloride, ferric chloride, zinc chloride and cobalt chloride, adjusted to pH 7.5 with potassium or sodium hydroxide.  Other media contain dextrin, brewers' yeast, dried yeast.  The antibiotic is isolated by treating the filtered broth with activated carbon, preferably at a pH 3.5, and eluting the absorbent with aqueous acetone or aqueous methanol at pH 3.5.  The eluate is evaporated to remove the organic solvent and then freeze dried.  Alternatively, the antibiotic is precipitated from the eluate by the addition of a non-solvent for the antibiotic. Fluvomycin is effective against both gram + ve and - ve bacteria; is readily soluble in water, alkanols (up to C6), ketones (up to C6), aqueous glycols, phenol and water-miscible organic solvents; is substantially insoluble in ether, chloroform, petroleum ether, nitromethane and substantially dry non-polar organic solvents generally; is amphoteric, somewhat hydroscopic, white solid, sintering at 200 DEG C. without melting; dialysable through membranes of cellulose acetate and the like and diffusable through agar; not extractable by organic solvents such as butanol at pH 1.5 to 9.5 and is not salted out into these organic solvents by saturating the aqueous component with salt; [a ]D20=+78 DEG  C. and [a ]546020=+95 DEG  C. in water; molecular weight 261 to 272 contains carbon 50 to 52 per cent; hydrogen 6.8 to 7.0 per cent, nitrogen 7.9 to 8.5 per cent and no sulphur; probably C12-14H18-20N2O3-5.
Patent GB-561580-A (GB)
Title: Improvements in and relating to threaded locking devices
IPC: F16B39/34
Filed: 1943-02-20
Abstract: 561,580. Self locking nuts. WESTLEY, C., (Boots Aircraft Nut Corporation). Feb. 20, 1943, No. 2857. [Class 89 (i)] A nut formed of thin sheet metal comprises a flange 3 perforated at 5 for attachment to one of the members to be connected and having a threaded tubular extension 1 enlarged at 7 to form seat 8 for a fibre washer 9 retained by the curled-over edge 10.
Patent GB-103026-A (GB)
Title: Improvements in Railway Signalling.
IPC: B61L23/16
Filed: 1916-02-26
Abstract: 103,026. Sykes Interlocking Signal Co., W. R., and Tarrant, R. W. Feb. 26, 1916. Electrical systems, automatic.-In order to economize current in a track circuit when a train or other low resistance connects the track rails, a winding having a resistance as high as, or higher than, that of the track relay which is shunted is arranged so as to be included in the circuit when a current larger than the normal passes through a relay winding in series with the battery, and a third winding is arranged to produce a magnetic field counteracting that produced by the main and economizing windings of the economizer relay. By this means, the device is operative notwithstanding variations in the ballast resistance. Fig. 3 shows a construction of the relay, and Fig. 2 shows one system of connexions to the track rails. The main winding s is in series with the track battery and is wound round a core k<1>. A highresistance winding t is wound on the same core. A neutralizing-winding v is wound round a second core m<1> so as to produce a magnetic field in opposition to that produced by the coils s, t. The core k<1> is rigid with armatures n', n<2> and rocks on studs 30, 31. The ends of the armatures n<1>, n<2> next to the core m<1> are of V-section, and the core m<1> is similarly notched. The contact member o is pivoted on a spindle 36, and the end 37 is depressed by a set-screw on an extension of the armature n', so as to cause the other end to make ccntact with the stud r when the armatures are raised. When no train is on the section, the current passing through the coil and the relay h is insufficient to lift the armature of the economizer relay. When a train shunts the relay h, the current through the coil s is increased, and the contact member o is moved from contact p to contact r. The coils t, v are thus energized, and the effective resistance in the circuit is increased so as to reduce the current passing through the battery j. The resultant magnetic effect of the three windings is sufficient only to retain the armatures, and, on the re-introduction into the circuit of the resistance of the relay h, the current is further reduced, so that the armatures are. no longer held but drop back and allow the contact o to return to its normal position. In the arrangement shown in Fig. 2, when the section is occupied, the winding t is in series with the joint resistance of the windings s, v, which are in parallel. In a modified arrangement, under the same conditions, the winding s is in series with the paralleled windings t, v.
Patent GB-1394303-A (GB)
Title: Articles carrying a thermosetting adhesive
IPC: C09J7/35
Filed: 1973-01-19
Abstract: 1394303 Clips ILLINOIS TOOL WORKS INC 19 Jan 1973 [19 Jan 1972] 2920/72 Heading E2B [Also in Divisions B6 and C3] A moulding clip comprises a body portion from which extend fastening means designed to receive a member to 'be mounted, there being a recess in one surface of the body portion and, secured to the body portion within the recess, either a dry layer of a thermosetting composition that 'becomes adhesive on heating, the composition comprising a mixture of acrylonitrile polymer and phenolic resin or an adhesive tape comprising a sheet or strip carrying a layer of the thermosetting composition at least on its exposed side, the thickness of the layer or tape being greater than the depth of the recess. Preferably the composition also contains a coumarone-indene resin. The composition may additionally comprise a sterically hindered phenol, e.g. octadecyl 3-(3, 5- di-tertiary-butyl-4-hydroxyphenyl) propionate. Preferably the thermosetting composition comprises 20-140 parts of a canboxy-modified butadiene-acrylonitrile copolymer, 100-200 parts of the phenolic resin and 1-10 parts of coumarone-indene resin. Preferably the sheet or strip is a sheet or tape of flexible polyurethane. One or both surfaces of the sheet or tape may carry the thermosetting composition. The layer may be applied from a slurry or solution. As shown in Figures 4, 5 and 6 a moulding clip 30 has a main body portion 31 behind which is secured thermosetting adhesive tape 10 positioned within a recess 32. Clip 30 includes transversely extending tab segments 35 which prevent the metal moulding strip from coming into actual contact with the painted surface adjacent the clip. Clip 30 also includes a pair of parallel resilient undersections 33 and 34 which are flexed inwardly towards one another upon applying a moulding strip thereto. To ensure proper gripping the outer surfaces of the resilient finger portions 33 and 34 are angled as seen in Figure 6. The moulding clips are applied to the car body by heating. As shown in Figure 8 a moulding strip 39 is secured by means of clip 30 secured with adhesive tape 10 to door 41. Moulding 39 has inwardly turned edge portions 42 which are forced over the inclined surfaces 36 and come to rest against the tabs 35 and grip the inclined surface 37. A plurality of clips can be secured in spaced apart positions to a continuous sheet or strip of adhesive tape and each of the clips can be severed from the strip and applied as desired.
Patent GB-890077-A (GB)
Title: Manufacture of shaped articles such as filaments from aromatic polysulphonamides
Inventor: MARSDEN RALPH JOHN BASIL
IPC: D01F6/76
Filed: 1958-01-29
Abstract: 890,077. Aromatic polysulphonamide filaments and solutions. IMPERIAL CHEMICAL INDUSTRIES Ltd. Jan. 7, 1959 [Jan. 29, 1958], No. 2946/58. Classes 2(2) and 2(5) In the manufacture of artificial filaments by extruding a solution of a benzene or benzene substituted polysulphonamide or of two or more such polymers in a water-miscible solvent into a coagulating bath, the bath comprises an aqueous solution of formaldehyde and the filaments are treated with an acid, preferably sulphuric acid, either during or after their passage through the bath. The solvent may be dimethyl formamide, aqueous caustic soda, ethyl carbonate or an aqueous mixture of a strong base and an alcohol. The coagulating bath may contain, in addition to formaldehyde, caustic soda, acetic acid, sodium sulphate, sodium acetate, caustic soda with sodium acetate or sulphate, or acetic acid with sodium acetate. In an example, a 35% solution of polyhexamethylene benzene p-di-sulphonamide in an aqueous solution of caustic soda is extruded into a 40% aqueous solution of formaldehyde at room temperature. The filaments thus formed are stretched 100-200% in an aqueous bath containing 1% sulphuric acid and 10% sodium sulphate, washed in water at 50‹-55‹C. and drawn over a snubbing pin at 95‹C. Specifications 875,067, 875,068, 875,069, 875,070 and 875,071 are referred to.
Patent GB-265768-A (GB)
Title: Improvements in flushing cisterns and other appliances
IPC: E03D1/08
Filed: 1926-02-02
Abstract: 265,768. Adams, M. J. Feb. 2, 1926. No Patent granted (Sealing fee not paid). Siphons.-In siphons for flushing cisterns &c. which are primed by lifting or depressing a piston in a cylinder 1, the piston rod passes through a flexible, sleeve 6 fixed to the cylinder and preferably provided with a small bush 7.
Patent GB-411074-A (GB)
Title: Instrument to improve whistling
IPC: G10D7/02
Filed: 1934-01-29
Abstract: 411,074. Facilitating whistling. HEES, G. VAN, 83, 15th Street, Buffalo, New York, U.S.A. Jan. 29, 1934, No. 2981. [Class 88 (ii).] A device to improve whistling comprises a mouthpiece 10 having a depression 11, into which the lips are inserted, and a small hole 13, the mouthpiece being mounted on a body 12 within which a strip 14 may be slid to bring holes 15 successively into registration with the hole 13 so as to produce a rolling effect.
Patent GB-1194461-A (GB)
Title: Processing of Green Tea Leaf
Inventor: FAIRLOUGH DAVID
IPC: A23F3/12
Filed: 1968-01-19
Abstract: 1,194,461. Tea manufacture. ALEX LAWRIE & CO. Ltd. 1 Jan., 1969 [19 Jan., 1968], No. 3029/68. Heading A2B. In a process for the treatment of green tea leaf, the chopped green tea leaves are caused to travel in a helical path by an air stream induced by a rotor in a cylindrical casing, so that the tea leaf cells are fractured by abrasion between periodically interengaging parts of the rotor and casing. A suitable apparatus is shown in Fig. 1 of the drawings, comprising a cylindrical casing 1 having an inlet 1a for the leaf and provided with projecting elements 2. A rotor 3 is provided with cutting blades 4a to cut the leaves and further blades 4b to abrade the leaves by interaction with elements 2. Fan blades 5 induce the air flow.
Patent GB-1477771-A (GB)
Title: Method of assembling a tractor-bowl scraper combination to facilitate passage of the combination between works sites a bracket for use in such a method and a tractor bowl scraper combination when such brackets are incorporated therein
IPC: E02F3/64
Filed: 1975-01-23
Abstract: 1477771 Earth-moving, bowl type scrapers CATERPILLAR TRACTOR CO 23 Jan 1975 [31 Jan 1974] 3049/75 Heading E1F In a tractor-bowl scraper combination provision is made for detachment of the draft arms 14 from the outside of the bowl and from the draft tube 19 of the draft yoke and reconnection of the arms to the inside of the bowl and to the draft tube to allow of reduction of the overall width of the combination to facilitate movement of the combination between work sites. Preferably the draft arms when connected to the inside of the bowl, are connected to the side walls 15 of the bowl and to brackets 26 connected to the draft tube 19 by the fastening means used for connecting the draft arms directly to the tube when the combination is functioning at a work site.
Patent GB-440690-A (GB)
Title: Improvements in the treatment of rubber scrap, old rubber or the like
IPC: C08J11/28
Filed: 1935-01-30
Abstract: A material for use in the treatment of scrap rubber is obtained by heating together colophony, turpentine and sulphur, e.g. to 165 DEG C.ALSO:Vulcanized rubber scrap and old rubber are regenerated by admixture with a reaction product of turpentine, colophony and sulphur.  This reaction product is formed by heating the p ingredients, e.g. to 165 DEG  C., and may be added to a mix containing scrap rubber at 40-50 DEG  C.  The finished product may be added to fresh rubber.  In a modification, the colophony, turpentine and sulphur may be added to scrap rubber, and the whole then heated.
Patent GB-704748-A (GB)
Title: A rotary cutting machine for stone
IPC: B28D1/04
Filed: 1950-02-06
Abstract: 704,748. Stone-cutting machines. BATH & PORTLAND STONE FIRMS, Ltd., and KELLY, G. E. April 26, 1951 [Feb. 6, 1950], No. 3058/50. Class 124 In a stone-cutting machine a power-driven carriage mounted for movement to and fro along a track 3 carries a power driving means 6 and a horizontal transverse drive shaft 11 for a diamond saw or like circular cutting-tool 12, the driving means driving, through suitable gearing, both the carriage and the cutting-tool so that the latter may operate irrespective of the direction of travel of the carriage. The power driving means may be an electric motor or an internal combustion engine and it may drive the shaft 11 through a flexible drive such as a chain or V-belt 9 with or without reduction gearing, whilst it may drive the carriage wheels 2 by a chain-and-sprocket or by a pulley-and-belt drive. It may be provided with an adjustable friction clutch and an automatic solenoid or other brake. The shaft 11 may carry a cutting tool on each of its ends, in which case it may be mounted above the carriage or comprise two half-shafts underslung with respect to a carriage moving along an elevated track under and across which the stone may be traversed. The carriage may include a table 4 which is dove-tailed as at 5 to allow traverse of the cutting-tool, and it may carry a pump driven by an independent motor for supplying cooling liquid to the tool 12, for example in the manner described in Specification 692,426.
Patent GB-535165-A (GB)
Title: Improvements in and relating to collapsible display devices
IPC: A47F5/11
Filed: 1940-02-19
Abstract: 535,165. Show-cards. CUT-OUTS (LONDON), Ltd., and LEWIS, R. G. Feb. 19, 1940, No. 3119. [Class 3 (ii)] A collapsable display device is formed from a flat blank having a pair of scored portions a, b united at one end by a sector c scored radially at c<SP>1</SP> from the point where the adjacent edges of the portions a, b meet. When the blank is folded as shown, the sector c assumes a part spherical formation over the walls a, b thus providing a recess with base d to receive a bottle &c. The lateral margins k may bear advertisements, and price tabs p, r may be cut out of the wall a and sector c.
Patent GB-682170-A (GB)
Title: Improvements in or relating to evaporators
IPC: B01D1/06
Filed: 1949-02-04
Abstract: <PICT:0682170/III/1> <PICT:0682170/III/2> <PICT:0682170/III/3> <PICT:0682170/III/4> In a series of evaporators wherein the liquor flows as a film down the interior surfaces of heated vertical tubes and part of the unevaporated liquor is recirculated to the tops of the tubes, each tube-chest is supplied with heating-medium from a common source, each evaporator is provided with a centrifugal liquid/vapour separator into which the wet vapours from the base of the associated evaporator are passed tangentially, and the series of separators is connected together in such a manner that the vapours separated in each separator pass to a common outlet, while the liquor that is not recirculated is passed to the next evaporator or, in the case of the last evaporator, is discharged as concentrated product. The apparatus shown comprises three tube-chests 1, supplied with heating-medium through pipes 12 from common pipe 11; condensate being discharged through pipes 13 and 14.  Dilute liquor is pumped to the top of the first tube-chest through pipes 23, 21, 6.  A drum 15 is joined to the lower end of each tube-chest by a hood 19; and adjacent drums have abutting flanges 16, apertures 17, and arcuate baffles 151.  The vapours accompanying the liquor discharged from the lower end of each tube-chest are deflected into drums 15 and, after being freed from entrained liquor therein by centrifugal motion about a horizontal axis, are discharged through outlet 18 The unvaporized liquor collects in sumps 20 which are connected by pipes 26, 27. Part of the liquor in each sump is pumped through pipes 21, 6 to the top of the associated tube-chest, while concentrated liquor is discharged from the sump of the last evaporator through pipe 25.  The apparatus is especially suitable for evaporation under vacuum.  A modified apparatus is described wherein the liquid/vapour separators cause the vapours to rotate about vertical axes.
Patent GB-1241929-A (GB)
Title: Improvements in the fastening of friction linings to clutch or brake components
Inventor: WEBER HEINZ
IPC: F16D69/04
Filed: 1970-01-22
Abstract: 1,241,929. Brake friction linings; construction and attachment; friction clutches. L. SCHULER G.m.b.H. 22 Jan., 1970 [29 Jan., 1969], No. 3137/70. Headings F2C and F2E. A friction lining for a clutch or brake component comprises a friction material secured to one face of a carrier, and at least one stud projecting from the opposite face of the carrier and adapted to pass through a bore in a clutch or brake component to which the lining is to be applied, the stud having a neck carrying an integral head; the head is resiliently compressible on at least one axis perpendicular to its longitudinal axis and can only pass through the bore in a compressed condition; in its expanded condition it presents one or more clamping surfaces facing the carrier and adapted to retain the stud in the bore. In Figs. 1 and 2, a body of friction material 3 having a friction surface 2 is secured to (or integral with) a carrier 4, the two together forming a lining 16 of a brake shoe 1. Two studs, each consisting of a neck 5 and head 6, are secured to the carrier 4, the outside diameter of the neck being smaller than that of the head. The stud may have a slot 8. The head at least (see below) is made of rubber or a resilient plastics material. In Fig. 3 the head and neck are integral, and the stud thereby formed has a bore 7 and is adhesively bonded to the carrier 4. A clamping surface 9 on the stud at the transition from head 6 to neck 5 co-acts with a surface 10 in a bore 11 provided in the shoe 1. The surfaces may be perpendicular to the head axis, as shown on the right, or inclined thereto, as shown on the left. The bore 11 is extended at 17 to accommodate the neck. The stud may be integral with the carrier (Fig. 4, not shown); the stud, the carrier and the friction material may be integral (Fig. 6, not shown). Where slots 8 are provided, the radial width of the clamping surfaces may be zero adjacent the slots and increase gradually to a maximum at the regions midway between the slots (Fig. 5, not shown). In Fig. 7, where four slots 8 are provided, the radial width of the clamping surfaces is uniform. In Fig. 12 (as in Fig. 6, not shown) the head is cylindrical instead of tapered; also, in Fig. 12 the neck 5 is joined to the carrier 4 by means of an enlarged base 15 embedded in it. To fit the lining 16, it is pressed against the shoe 1 so that the heads 6 penetrate the bores 17 until the clamping surfaces engage. For removal pressure is applied by means of a tool to the heads of the studs. The brake shoe 1 shown in Fig. 1 is mounted pivotally in known manner at one end (not shown), and at the other end (not shown) it is spring biased against e.g. an operating cam.
Patent GB-620933-A (GB)
Title: Improvements relating to electrical plug and socket connectors
IPC: H01R13/453
Filed: 1947-02-03
Abstract: 620,933. Two-part couplings. PARSONS, Ltd., C. H., and HANDLEY, G. B. Feb. 3, 1947, No. 3163. [Class 38 (i)] In a socket-coupling suitable for wall mounting, a pivoted shutter 13 normally covers the live rectangular socket contacts 10, 11. This shutter is actuated by a lever 17, which is pivoted at 18 and has, on one side of the pivot, a cranked portion 20 which enters the earthing socket 12, and an arm 19 with a pin which engages a slot in the shutter. On the other side of the pivot, the lever has a cranked portion 22 on which bears a spring 23 situated in a recess 26 in the socket base. When a plug is inserted, the earth pin engages the inclined edge 21 of the cranked portion 20, causing the lever to rock about its pivot and so turn the shutter to uncover the socket contacts 10, 11. In a modification, Fig. 3 (not shown), the earth pin and the spring act on the same end of the lever, whilst the shutter is actuated by the other end.
Patent GB-862743-A (GB)
Title: Improvements in or relating to pressure applying or responsive means
Inventor: CONWAY ARTHUR
IPC: F15B15/10
Filed: 1956-02-01
Abstract: 862,743. Hydraulic apparatus. BRITISH IRON & STEEL RESEARCH ASSOCIATION. May 1, 1957 [Feb. 1, 1956], No. 3188/50. Class 69 (2). [Also in Groups XIX and XXII] An hydraulic device for applying pressure to the rolls of a rolling mill comprises a piston 22 and an annular piston 23 which are bolted to a base-plate 20 and cooperate with annular members 14, 17a bolted to a base-plate 12 thus forming a pressurechamber 28 and an annular pressure chamber 30. The device is located between a roll chock and corresponding screw of a rolling mill, chamber 30 is connected to an hydraulic accumulator and chamber 28 is in communication with a source of high-pressure oil through a regulating valve controlled as described in Specification 692,267. The chambers are sealed by a resilient seal 25 bonded to the piston 22 and to the inner wall of member 14, and a seal 27 bonded to piston 23 and member 17a. A member 17b is bolted to member 17a and is formed with a lip co-operating with a projection on the base-plate 20 to limit the maximum separation of the base-plates. The device may also be used in the testing of a structure under the combination of steady and periodic loading, a steady pressure being applied to one chamber and a periodically-varying pressure to the other. The device can be used to indicate variations in loading if one chamber is maintained at constant pressure and the other chamber is connected to a pressure indicator.
Patent GB-193256-A (GB)
Title: Improvements in taps or valves for controlling the flow of fluids
IPC: F16K3/08
Filed: 1922-02-04
Abstract: 193,256. Rotherham, K., and Smith, H. N. Feb. 4, 1922. Rotary disc valves.-A rotary ported disc E and cork facing-washers F, G are enclosed and gripped within two body parts A, B which are screwed together as shown, and locked by a grub screw L. One of the body parts is slotted for the passage of the handle J which is screwed into the edge of the disc.
Patent GB-1359491-A (GB)
Title: Cultivator with attachment for the injection of fluids into the  soil
IPC: A01B49/06
Filed: 1972-04-06
Abstract: 1359491 Agricultural implements R T JEYNES 6 April 1972 [28 Jan 1971] 3347/71 Headings A1B and AID A rotary soil cultivator that has powered rotary tines 2 is provided with an attachment comprising a toolbar 10 supported by brackets 4, a number of non-rotary knife tines 7 fixed to the toolbar in alignment with the rotary tines 2 and an injection pipe 5 for delivering fluid under pressure to the soil, mounted adjacent the trailing edge of each knife tine 7. Toolbar 10 may be varied in height relative to the ground by bolts 12, 12' engaging in any one of three sets of bolt holes in brackets 4, Fig. 3 (not shown).