baber/WOPTO huggingface dataset:
Patent GB-677743-A (GB)
Title: An antibiotic substance defined as streptocin and the manufacture thereof
Filed: 1950-02-06
Abstract: An antibiotic streptocin is obtained from Streptomyces griseus strain No. 3533 (a non-streptomycin and non-grisein producing strain of S. griseus) by cultivating the organism in a nutrient medium, preferably under stationary conditions for 5 to 6 days at 25 DEG  to 28 DEG  C., separating the mycelial growth from the broth and extracting the said growth with a polar solvent, e.g. methanol, ethanol, acetone or water, ether saturated with water being preferred.  After removal of solvent, the residue may be dissolved in any solvent which will not inactivate the material, e.g. methanol, benzene, ethyl acetate, petroleum ether and acetone or mixtures thereof, chromatographed and the chromatogram developed with solvents of increasing polarity until streptocin appears in the eluate.  Alternatively, the streptocin may be obtained by subliming the residue obtained by the initial extraction of the mycelial growth in vacuo at 100 DEG  C.  It may be crystallized from 1 per cent glacial acetic acid in methanol or from acetone.  In one example, a sterile medium consisting of 1 per cent glucose, 0.5 per cent peptone, 0.3 per cent meat extract and 0.5 per cent sodium chloride in tap water is inoculated with the S. griseus and maintained at 25 DEG  to 28 DEG  C. for 6 days.  The mycelial growth is separated by centrifugation, extracted for 24 hours with ether and water, the ether removed from the etherial extract and the resulting brown oil extracted with absolute ethyl alcohol.  The yellow solid obtained from the alcohol extract is dissolved in petroleum ether and chromatographed on a column of Brockman's alumina.  The column is developed with increasing concentrations of (a) benzene in petroleum ether, (b) acetone in benzene, (c) ethanol in acetone, (d) methanol in ethanol up to 50-50 mixture thereof, (e) as in (d) up to 100 per cent methanol, and (f) 1 per cent glacial acetic acid in methanol.  Streptocin is recovered from the 50-50 eluate of (d) and from (e) and (f). Streptocin is active against Trichomonas vaginalis and Trichomonas factus Br., but not against Trichomonas gallin ; contains elements C, H and O; is soluble in polar solvents and insoluble in non-polar solvents, e.g. amyl acetate; exhibits characteristic absorption bands in the infra red.
Patent GB-1425450-A (GB)
Title: Air separation
IPC: F25J3/04
Filed: 1972-01-21
Abstract: 1425450 Air separation AIR PRODUCTS & CHEMICALS Inc 19 Jan 1973 [21 Jan 1972] 3115/72 Heading F4P In an air separation process having a twostage fractionation column C101, C102, liquid oxygen withdrawn from the sump of the lowpressure stage C102 via line 32 passes downwards a substantial distance (45-50 ft.), to a vaporizer C107, so that the oxygen is vaporized at a pressure substantially above the pressure of the l.p. stage, the oxygen being vaporized by condensing column feed air. Feed air is compressed at K101, cooled at E112, condensed water vapour extracted at C108 and the air fed to reversible heat exchangers E101, E102, the air being fed alternately with waste nitrogen so that remaining water vapour and carbon dioxide are frozen out and then purged. The cooled air is fed to a phase separator C106 where it contacts the air condensed in the oxygen vaporizer C107. The liquid air from C106 is expanded at 4 and fed to the h.p. stage C. 101. The overhead vapour from C106 is split into three portions, one is fed to the vaporizer C107, one is cooled in exchanger E105 and returned, and the third is partly warmed in exchanger E102, and then work expanded at K102 and fed to the h.p. stage C101. Product N 2  gas is withdrawn via line 31, some being fed to the condenser/reboiler E106 and then in liquid form to the l.p. stage C102 via expander valve 2 or to a storage vessel T101. Crude liquid O 2  is withdrawn from the base of h.p. stage C101, cooled at E103, passed through a pair of hydrocarbon adsorbers C103 (only one shown) and expanded through valve 1 into the l.p. stage C102. A further hydrocarbon adsorber C104 is located in line 32. The vaporized O 2  from C107 is warmed in exchangers E105, E102 and E101 and issues as product in line 18 at about 40 p.s.i.a., a small quantity of liquid O 2  being withdrawn from C107, vaporized at E111 and added to the product stream.
Patent GB-1122135-A (GB)
Title: A new derivative of 4-hydroxy-coumarin, process for preparing same, and applications thereof
IPC: C07D311/46
Filed: 1967-01-20
Abstract: Novel (5,5 - dimethyl - cyclohexane - 1,3-dione - 2 - yl) - 3 - methyl - 4 - hydroxy-coumarin or its corresponding enol is prepared by reacting a Mannich base of either 4-hydroxy coumarin or 5,5 - dimethyl - cyclohexane - 1,3 - dione with the second of the said compounds.  A therapeutic composition, useful as a thrombinemia reducing agent, contains the above novel compound as the active ingredient. It is administered in the form of tablets.
Patent GB-947632-A (GB)
Title: Improvements in or relating to the recovery of gold from gold-bearing aqueous cyanide liquor
Inventor: BUEGGS ANTHONY ARTHUR
IPC: B01D15/04
Filed: 1960-01-28
Abstract: Metallocomplex anions may be recovered from aqueous cyanide liquors by contacting the liquor with a low capacity strong base resin which comprises a fully halomethylated cross-linked aromatic polymer in which 10-60% of the halomethyl groups have been reacted with one or more tertiary alkylamines in which the alkyl groups, which may be the same or different, each contain from 4 to 7 carbon atoms, which alkyl groups are linear or branched, provided that the branching does not occur at the first carbon atom.  After contacting the anions may be eluted.  Metallocomplex ions which may be present contain gold or silver. Specifications 727,582 and 947,631 are referred to.ALSO:A process is described for producing a low-capacity strong base anion-exchange resin which comprises fully halo-methylating a cross-linked aromatic polymer and then reacting with a tertiary alkylamine in which the alkyl groups may be the same or different and contain from 4-7 carbon atoms in a straight or branched chain provided that the branching does not take place at the first carbon atom.  The polymer can be polystyrene cross-linked with 1.5 - 10% of divinyl benzene or other material.  Halomethyltion is carried out by treating with chloromethyl ether in the presence of stannic chloride. The amination is carried out by treating with the tertiary amine (tri -n -butylamine and tri - n - amylamine specified) preferable in the presence of an inert swelling agent (such as dioxan or chlorobenzene) and heating under reflux until 10-60% of the halogen present has been reacted. The resin preferentially absorbs gold and silver from aqueous cyanide liquors.  Specifications 727,582 and 947,631 are referred to.
Patent GB-1211291-A (GB)
Title: Cutter-equipped milling tool and device for adjusting and clamping the cutters of milling tools
Inventor: WOLF ADOLF
IPC: B23C5/24
Filed: 1968-01-22
Abstract: 1.211.291. Milling cutters. A. WOLF. 22 Jan.. 1968 [23 Jan.. 1967: 8 Sent.. 19671. No. 3184/68. Heading B3K. A milling cutter having detachable cutter blades 4, has means for individually hydrualically adjusting and individually hydraulically clamping each blade. The blades 4 are carried in segments 2 arranged around a tool body member 1 and are adjusted against a centring ring 10 which may be placed around the milling cutter, adjustment being effected by rotation of a screw 29 which moves a piston 28 and thereby transmits pressure through a self sealing pastelike medium 22 to an adjusting piston 11. Similar means are provided for loading the clamping piston 5. In one embodiment, Fig. 10, the cutter blades are adjusted in radial and axial directions simultaneously by pistons 94. In another embodiment, Fig. 12, each segment has its individual hydraulic clamping and adjustment systems which are connectible to and disconnectible from common hydraulic systems in the tool body 126 through a ball type valve 130, 131. Opening and closing of the valve 130, 131 is controlled by movement of a screw plunger 128. Embodiments of the invention include a gang type profile milling cutter or hob (Figs. 5, 6 and 7, not shown) in which each segment carries axially spaced cutter blades each having its adjusting piston and clamping member operable respectively from the hydraulic systems in that segment. In all cases the centring ring is preferably formed in two halves and is located against axial and peripheral surfaces on the milling cutter, being clamped by means such as 116, Fig. 10.
Patent GB-489768-A (GB)
Title: Process and apparatus for the uninterrupted dissolution of cellulose xanthate
IPC: D01F2/08
Filed: 1937-02-03
Abstract: <PICT:0489768/IV/1> The continuous dissolution of cellulose xanthate in lye and water to produce viscose is effected in a rotating drum containing two or more rollers arranged end to end and extending substantially from end to end of the drum; the rollers run on the inner cylindrical surface of the drum and at least one of them has a diameter such that it nearly fills the internal cross-section of the drum.  In the Figure, a is a rotating drum containing rollers d, d1 and d2.  Cellulose xanthate, water and alkali lye are introduced continuously by means of the stationary hopper b and the conveyer worm c so that the liquid level in the drum a is always higher than the hollow trunnion k through which the viscose is discharged.  The roller d1 affects the comminution of the pasty lumps of xanthate which tend to float on the surface of the liquid and the discharge of viscose free from lumps is effected by means of the knife-like striker g, fixed to shaft h, which keeps free the narrow passage i formed between the concentric shielding disc e and the end wall f of the drum.  The striker g may be stationary or rotatable and there may be more than one passage i with as many strikers g.  According to the Provisional Specification, the rotating drum may contain one roller only, whose length is equal to that of the drum, or it may contain several rollers all of equal diameter arranged end to end, whose total length is equal to that of the drum.
Patent GB-414393-A (GB)
Title: Improvements in and relating to the production of resinous condensation products
IPC: C08G12/08
Filed: 1933-02-02
Abstract: A molecular proportion of an aromatic amine such as aniline or toluidine is condensed with at least one and a half molecular proportions of an aldehyde such as formaldehyde, acetaldehyde or benzaldehyde in the presence of about one fifth a molecular proportion of a strong mineral acid in an aqueous alcoholic or acetone solution.  The products may be dried and/or hardened in the presence of acids such as monochloracetic acid with or without the addition of fillers.
Patent GB-1532275-A (GB)
Title: Apparatus for controlling raster-scan displays
IPC: G09G5/02
Filed: 1976-01-28
Abstract: 1532275 Controlling raster-scan display NATIONAL RESEARCH DEVELOPMENT CORP 26 Jan 1977 [28 Jan 1976] 03301/76 Heading G4A [Also in Division H4] The intensities of zones of a display on a device 10 are controlled by respective data processors 18a-18n each including a local store (31, Figs. 3, 5b, not shown) which receives from a buffer store 11 parameters defining the boundaries of the respective zone and an arithmetic unit (29) which derives the co-ordinates of points on the zone boundaries and determines whether the current display point, specified by the outputs of x-counter 23 nad y-counter 24, is within the zone and, if it is, passes an enable signal to a control unit which supplies appropriate control signals to the three guns of the display device 10 via three digital-toanalogue converters 27. The different zones are allocated to the data processors 18a-18n by a control unit 21. Overlay of one zone over another may be provided by use of a priority unit in control unit 21, the zone to be overlayed having a higher priority than the other zone; the priority unit may include pairs of registers, each active zone entering its priority into one register of a pair and the identity of its data processor into the other; alternatively a relative priority for each zone may be determined before each scanned line and stored in a respective latch (184-187, Fig. 12, not shown). The parameters defining the boundaries of a zone may be the co-ordinates YT, YB of the top and bottom of the zone, the initial coordinates at YT of the left and right zone boundaries XL, XR, the first, second and third differences between scanned lines for XL, XR, the initial colour at YT and the colour difference between scanned lines. Different parameters XL, XR may be provided for the two interlaced fields of each frame. The X and Y co-ordinates of the current display point are compared with the coordinates of the zone boundaries by adding one co-ordinate and the complement of the coordinate to be compared, an all 1 output indicating equality. The display may be used in a simulator for training the crews of aircraft, ships or space vehicles.
Patent GB-1385153-A (GB)
Title: Apparatus for indicating the relative density of two liquids
IPC: G01N9/26
Filed: 1973-01-23
Abstract: 1385153 Measuring density COMPAGNIE EUROPEENNE D' ACCUMULATEURS 23 Jan 1973 [27 Jan 1972] 3490/73 Heading G1S [Also in Division H1] A device for measuring the density of a first liquid 4 relative to that of a second liquid 5 comprises inter-communicating vessels 1 and 2 respectively containing the first and second liquids in static balance, and a float 6 floating on the surface of the first liquid and provided with graduations 8. The relative density is a function of the difference in levels l which is measured by observing the graduation 8 level with the surface of liquid 2. Alternatively the graduations may be density graduations. Liquid 4, may be a battery electrolyte and liquid 5 may be mayoline. The float 6 may also be provided with a mark 9 cooperating with a scale 13 to indicate the level of liquid 4. Alternatively the mark 9 may be arranged on the vessel 1 and the scale 13 on float 6. If liquid 4 is the liquid of lesser density, the graduations 8 may be arranged below the float. The vessel containing the second liquid may be a tube open at both ends dipping into the first liquid Fig. 2 (not shown). The device may be incorporated in a battery Fig. 2 (not shown) and part of a tube constituting the vessel containing the second liquid may take the form of a cavity in the battery wall.
Patent GB-396123-A (GB)
Title: A mechanical figure for demonstrating the swing of a golf or like club
IPC: A63B69/36
Filed: 1932-02-08
Abstract: 396,123. Demonstrating swing of golf &c. clubs. THYNE, D. S., Greenside Lodge, Corstorphine Road, Edinburgh. Feb. 8, 1932. No. 3658. [Classes 132 (ii) and 132 (iii).] Mechanical figures for demonstrating the swing of a golf or like club comprise a grip or wrist-piece 29 of a miniature club 30, a pair of articulated arms each comprising an upper limb 20 and a lower limb 26, and means for controlling the arms so that the club 30 is given the correct swing. The figure is mounted on a base 1, being supported by a plate 7 attached by a clamp 6 to an upright thereon. The plate 7 together with a bracket 9 supports a grooved wheel 8 on a stationary spindle 10 secured to the bracket 9. The spindle 10 alsoserves to carry a collar 11 having a flange 12 to which are secured two supporting rods 13 carrying at their upper ends a disc 14 loosely mounted on the spindle. When the grooved wheel 8 is rotated, which may be done by an electric or spring motor fitted with speed-controlling means or means for controlling the length of the stroke, the collar 11, flange 12, rods 13, and disc 14 rotate about the spindle 10. A coil spring 16 is attached at one end to the collar 11, and at the other end to a notched collar 17 fixed to the spindle 10 by a pin 18, so that the tension of the spring can be suitably adjusted to bring back the arms of the figure to the original position when an intermittent pull of a motor arranged to act on the wheel 8 through a cord 52 is not in operation. The upper limbs 20 of the arms are pivotally mounted on pins 21 to shoulder pieces 19 fixed to the disc 14. At the lower end of each limb 20 a short member 20a is hinged about an axis at right-angles to the pin 21. The short member 20a is connected by a longitudinal pivot pin to a member 24, which is linked with the limb 26 by means of an elbow 25 forming a universal connection. Each arm is controlled by a spring 32 fixed to a projection 35 and slidable through a projection 36 which rotates on an extension 37 of the elbow 25, and by another similar spring connected at one en d to the shoulder piece 19 and at the other en d also sliding through a rotatable projection on the elbow 25, and having a coiled portion. A further spring 34 may be provided for controlling the movements of the lower limb 26. Each upper limb is provided with an extension 43 universally connected at 45 to a back link 46, which is itself universally connected to a block 48 on the plate 7. The upper ends of the links. 46 are connected to the projections 35 on the links 20 by means of springs 49. When the figure is operated, the springs hold the left arm more or less rigid on the back stroke, while on the follow-through swing the right arm remains comparatively rigid and the left arm bends.. The mechanism is preferably enclosed in a dummy.
Patent GB-113683-A (GB)
Title: Improvements in Pistons having Gudgeon Pins.
Inventor: SADGROVE HORACE FRANK VIVIAN
IPC: F16J1/16
Filed: 1917-03-14
Abstract: 113,683. Sadgrove, H. F. V. March 14, 1917. Piston; connecting- rods.-An aluminium or like piston for an aeroplane or like engine is strengthened by an internal structure of steel &c. which is secured in position during casting and comprises an end disk a, which may be perforated and is connected by rods or tubes c, f to blocks c, d, which are afterwards bored to form the bearings of the gudgeon pin. The disk a and blocks c, d are formed with positioning-pegs a<2>.
Patent GB-1463892-A (GB)
Title: Combination of a discharge tube and a permanent magnet
IPC: H01J29/64
Filed: 1974-01-25
Abstract: 1463892 Cathode-ray tubes; permanent magnets THOMSON-CSF 25 Jan 1974 [26 Jan 1973] 03681/74 Headings H1D and H1P A discharge tube, e.g. a camera tube employing a scanning electron beam, has a permanent magnet focusing arrangement which includes a stack of coaxial, frustoconical, contacting, ring magnets, all diverging in the same direction, and all axially magnetized in the same sense. The preferred arrangement, Fig. 6, is formed of two half stacks, the conical surfaces pointing outwardly, and all the magnets being magnetized in the same sense. The ring magnets may be of plastics or elastomeric material filled with a ferrite powder.
Patent GB-1259825-A (GB)
Title: A composite pattern and core box assembly for sand casting
IPC: B22C7/00
Filed: 1969-01-22
Abstract: 1,259,825. Patterns. REGIE NATIONALE DES USINES RENAULT, and AUTOMOBILES PEUGEOT. 22 Jan., 1969 [22 Jan., 1968], No. 3690/69. Heading B3F. A composite pattern for sand moulding has some parts 1, 3a and 4a made of a rigid material e.g. wood, and some parts 3b, 4b of an expanded synthetic material, e.g. foamed polystyrene, which is in contact with but not secured to the rigid material. The pattern may be in the form of a box having a lining of polystyrene therein, the lining being extracted from the box on removal of the core 5 therefrom. The box may be provided with a plurality of compartments for a plurality of cores, the common wall separating two such compartments having a lining of polystyrene on one side only. The box may be held together by angle irons 6 which are secured to the walls by screws removable from inside the box, so that after extraction of the core 5, the pattern may be dismantled to enable it to be removed from the surrounding mould.
Patent GB-1212162-A (GB)
Title: Improvements in or relating to axially locking gear lock mechanisms
IPC: F16H55/18
Filed: 1969-01-23
Abstract: 1,212,162. Securing gear pinions on shafts. FICHTEL & SACHS A.G. 23 Jan., 1969 [10 Feb., 1968], No. 3749/69. Heading F2U. The planets 3 of an epicyclic gear are axially positioned on spindles 2 of the carrier 1 by an end plate 4 held in contact with the pinions by an axial loading spring clip 6 engaging the spindles 2. For three planets as shown, end plate 6 is triangular and spring 6 has two limbs 9 with bent over tongues 8 engaging grooves 7 in spindles 2. The axial spring loading is obtained by engagement of limbs 9 with mushroom headed projections 10 carried by end plate 4, or by shaping the limbs 9 to bear directly against the end plate.
Patent GB-242490-A (GB)
Title: An appliance for brushing, dusting and polishing floors
IPC: A47L13/12
Filed: 1925-02-11
Abstract: 242,490. Saunders, A. W. Feb. 11, 1925. Pivoted handles; fixing by screwed sockets. -In a combined brush and mop swinging reversibly in a bail 10 carrying the handle, pivot pins 9 on the bail enter holes 8 in the head, assisting also to hold the mop fabric. The bail 10 carries a socket 11 with an internal screw thread or projections 12 for receiving the handle.
Patent GB-319314-A (GB)
Title: A new or improved machine for impressing stereotype matrices
IPC: B41D1/00
Filed: 1929-02-05
Abstract: 319,314. Firth, E. C. Sept. 20, 1928, [Convention date]. Type-lever machines for embossing paper; hammer-impression arrangements.-A stereotype matrix is impressed by means of a typewriter having an electrically operated plunger for striking the type-levers after they have been raised by operation of the keys. In the machine shown in the figure a solenoid 9, mounted on a bar 12 on the framework, is provided with a sliding core 17 for striking the type-levers 6. The circuit of the solenoid includes contacts 22 normally closed by a pivoted blade 19, and a rocking contact 26 which is moved into engagement with a contact 27 on operation of any of the keys 7. The matrix is placed on the platen 5 and receives successive impressions on operation of the keys, a typelever being raised by the associated key and being struck by the core at each operation. During the striking movement of the core an adjustable collar 21 thereon rocks the blade 19 and opens the contacts 22. Thereupon a spring returns the core and an adjustable collar 18 thereon rocks the blade and closes the contacts. The striking force of the core may be adjustable. Two solenoids having a common hores-shoe core may be employed.
Patent GB-1173332-A (GB)
Title: A Spectrophotometric Method and Apparatus for the Determination of the Absorption of Light by Substances Participating in Chemical Reactions
IPC: G01J3/28
Filed: 1967-01-25
Abstract: 1,173,332. Photo-electric spectrometers. ZENTRALNA LABORATORIA PO BIOPHYSIKA PRI BULGARSKA AKADEMIA NA NAUKITE. Jan. 25, 1967 [Jan. 31, 1966], No.3828/67. Heading G1A. A photo-electric spectrometer, for use e.g. in investigating absorption of light by substances involved in fast-running chemical reactions, does a high-speed repetitive scanning of the continuously changing spectrum produced by a prism 2 receiving light, from a broad wavelength band source 1, which has passed through the reacting substances in vessel 5. The output of the scanning device 9, on to the photo-sensitive screen 8 of which the spectrum from the prism 2 is projected, is fed to a memory device 11. The device 11 also includes time scaling circuitry to allow the instantaneous representations of the continuously changing spectrum to be displayed on oscilloscope 10. Analog to digital conversion of the information is carried out by a device 12 before supplying a digital computer 13, which operates on this information and on information as to absorption co-efficients of the substances involved in the chemical reaction &c., to enable investigation of the kinetics of the reaction. Changes in biological specimens can also be investigated.