baber/WOPTO huggingface dataset:
Patent GB-606482-A (GB)
Title: Improvements in and relating to the purification of penicillin salts
IPC: C07D499/24
Filed: 1946-01-28
Abstract: Pure penicillin is prepared by a process in which free penicillin dissolved in a solvent is treated with a primary amine. The resultant precipitate of a penicillin primary amine salt may be converted into corresponding metallic salts.  It has been found desirable to dissolve the penicillin in a main solvent, subsequently to add a secondary solvent and finally to add the primary amine.  Suitable primary amines are cyclohexylamine, 2, 3 or 4 methyl cyclohexyl amine, monoethylamine, isopropylamine and n-butylamine.  Preferred main solvents are ether, amyl acetate, methyl isobutyl ketone and, using a modified process, chloroform. Preferred secondary solvents are ethyl alcohol, acetone and methyl ethyl ketone.  In examples: (I) and (IV) an ethereal extract of an acidified penicillin solution was diluted with acetone and treated with cyclohexylamine; (II) the cyclohexylamine salt was similarly prepared using methyl isobutyl ketone as the solvent, and (III) the isopropylamine salt was prepared using ether as the main solvent with acetone as a secondary solvent.
Patent GB-178920-A (GB)
Title: Improvements relating to the utilization of waste removed from the foundation bands of solid rubber tyres
IPC: B29B17/00
Filed: 1921-01-22
Abstract: 178,920. Gare, H., and Gare, G. Jan. 22, 1921. Disc wheels. - The waste removed from the foundation bands of solid tyres consisting of ebon. ite with soft rubber adhering thereto, powdered or in the piece, is reformed by pressure and heat, the pressure being so applied that it follows up the material as the volume decreases. To make, for example, a trolly-wheel with a soft tyre, a pattern plate 3 is inserted into a tubular member 1, a metal bush 5 is placed in position on a loose pin (not shown), and the requisite quantity of around waste is fed in, a ring 6 of soft pram tyring being placed in position during the operation. An upper pattern plate 7 is inserted, discs 2, 8 heated to about 500‹ F., are placed outside the pattern plates, and the whole is clamped together by a bolt 4 and nut 9, the nut being screwed down as the material shrinks. A quantity of soft rubber, also pieces of wire, canvas, &c., may be added to the waste. For making wheels for trolleys, scooters, sewing-machines, &c., two pieces of waste may be placed with the soft rubber sides in contact, whereby a wheel &c. is produced having a hard exterior but a softer interior.
Patent GB-217549-A (GB)
Title: Improvements in a leather stretching machine
IPC: C14B1/02
Filed: 1924-02-04
Abstract: 217.549. Horsting, W. F. June 13, 1923, [Convention date]. Stretching by tension.-The stretching frames 9 of a leather-stretching machine are removably suspended from an inclined overhead track 6 which feeds the frames by gravity to the machine in the vertical position, a turntable 53 on the machine being fitted with a track 65 to receive the frames and transfer them to the horizontal or stretching position. After depressing a pedal to release a catch engaging a notch 67, the table is turned clockwise to bring the track 65 parallel with and below the feed end of the track 6. The frames, suspended from the track 6 by pulleys 24 and guided at the base by fixed switch 74. are thus directed so that pulleys 34 at the centre of a frame run on the track 65. The pulleys 34 are so shaped that, after returning the table to its origliaal position, the frames may be turned on the track 65 from the vertical to the horizontal position in which position they are clamped to a fixed post 75 by a hook 80. The irregular end of the leather to be stretched is now attached to the usual adjustable clamps 12, and the straight end is engaged by a clamp 16. This clamp is slidable on the side bars 9 of the frame so as to automatically engage with the piston rod 42 of a power cylinder 40 which effects the stretching. Counterweighted toothed eccentrics 26, Fig. 13, on the sleeves 15 of the clamp 16 immovably engage an indented bar 31 as soon as the stretching force is removed. By a reversal of the feed operation the frames are returned to the other end of the fixed track, the rollers 24 passing over the hump 8 of the track and the frames slowly gravitating to the feed end to allow sufficient time for the leather to set. Specification 192,983 is referred to.
Patent GB-414354-A (GB)
Title: Improvements in and relating to tuning and indicating devices for radio receivers and like high-frequency apparatus
IPC: H03J1/02
Filed: 1933-01-30
Abstract: 414,354. Frequency measurements. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Wistrup, C. A. ; 224, Burrwood Avenue, Collingswood, New Jersey, U.S.A.) Jan. 30, 1933, No. 2891. Convention date, Jan. 30, 1932. [Class 37.] In order to provide on a revoluble indicating member 21 a substantially accurate indication of the frequency to which a highfrequency apparatus, such as a wireless receiving apparatus, is tuned, the operative connection to the tuning member 1 includes a cam surface shaped to effect the necessary corrections. In the example, the cam surface comprises a strip 12 capable of adjustment as to contour by a series of screws 11 and a spring pressed camroller 4 is mounted on a drum 2 concentric with and moving with the tuning means 1. The indicator 21 to which the cam is attached is revolubly mounted on a shaft 8, out of alignment with the tuner shaft 3. Either the indicator drum 7 or the tuner drum 2 may be actuated by the tuning knob. In a modification, in place of a cam roller a slotted rod may engage the edge of a similarly adjusted cam strip. Reference has been directed by the Comptroller to Specification 290,219, [Class 37].
Patent GB-1376996-A (GB)
Title: Composite insulations
IPC: E04B1/66
Filed: 1972-01-21
Abstract: 1376996 Composite insulation coatings MEYNADIER & CIE AG 21 Jan 1972 [1 Feb 1971] 2944/72 Heading B2E  A process for insulating a substrate comprising the steps of (1) providing the substrate with at least one plastic insulating layer of bitumen, tar or a mixture of bitumen or tar with a natural or synthetic latex by the simultaneous, but separate application of an emulsion or dispersion of plastic insulating material and a precipitant therefor, and (2) covering the plastic insulating layer so formed with at least one layer of an elastomer by a similar separate emulsion/precipitant method of coating. A further plastic insulating layer may be formed over the elastomer layer. The precipitant is a material such as an emulsion or latex of charge opposite to that of the coating material, an aqueous solution of a mineral acid or a salt thereof or a pulverent substance such as cement, hydraulic lime, gypsum, anhydrite, burnt lime, bentamite, fuller's earth, kaolin, finely divided silica, kieselguhr, trass, finely divided blast furnace slag or brick powder, slate powder, active charcoal, carbon black or slurries thereof. The elastomer may be polychloroprene, polyacrylontrile, styrene/ butadiene copolymer, or natural rubber, which may be pigmented. The plastic insulating layer is 2 to 5 mm thick and the elastomer layer is 0.5 to 3 mm thick and each layer may contain anti-aging agents. The substrate may be the wall of a building, or a mine gallery or tunnel, and the coatings are preferably applied by spraying.
Patent GB-688433-A (GB)
Title: Improvements in devices for producing electrified droplets
IPC: B05B5/043
Filed: 1951-02-06
Abstract: 688,433. Electrostatic precipitation. OFFICE NATIONAL D'ETUDES & DE RECHERCHES AERONAUTIQUES, O. N. E. R. A., and CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, C.R.N.S. Feb. 6, 1951 [Feb. 7, 1950], No. 2953/51. Class 39(i) [Also in Group XXIX] A spraying apparatus which may be used for dissipating fogs, purifying an atmosphere containing coal dust &c. comprises a conduit 1 from which liquid is atomised by pressure gas from a surrounding nozzle 2, and the spray is electrically charged by connecting a direct high voltage between the nozzle 2 and conduit 1, and a circular electrode 3. A set of such conduits and electrodes, Fig. 2, may be spaced: along concentric pipes fed with liquid and gas, the electrodes being supported by a pair of rods 8, and the set carried on an aircraft or on a land vehicle. The liquid may be water and may include calcium or sodium chloride, or a wetting agent such as succinic acid.
Patent GB-128864-A (GB)
Title: Improvements in Separating Devices for Thrashing Machines.
Inventor: ROBINSON WILLIAM ALEXANDER
IPC: A01F12/30
Filed: 1919-02-06
Abstract: 128,864. Robinson, W. A. Feb. 6, 1919. Thrashing-machines.-The shaking-device of a thrashing-machine is formed by an inclined stationary deck 6 comprised by longitudinal slats 7 - - 11 in the slots between which shakers in the form of rotating kicker fingers 22 having convexed operating edges 22<x> move. The kicker fingers are secured to shafts 14 - - 18 geared together and driven from the shaft of the beater drum. The slats 7 - - 11 have convex upper faces and are provided with series of perforations through which the separated grain falls.
Patent GB-390119-A (GB)
Title: Improvements in cooking ranges
IPC: F24B1/24
Filed: 1933-01-31
Abstract: 390,119. Cooking-stoves. URE, G. A., Wheatlands, Bonnybridge, Stirlingshire. Jan. 31, 1933, No. 2955. [Class 126.] Ovens; heat-distributers.-The oven of a cooking-range comprises massive bottom and side walls 1, 2 of well-conducting metal, integral with or thermally united with one another, and an inner side wall 4 insulated from the wall 2, the latter being wholly or in part exposed to the fire or hot gases. Bottom heat is thus obtained by conduction to the bottom wall 1. The top wall 7 is spaced or insulated from the wall 2. The range shown in that described in Specification 390,674.
Patent GB-564518-A (GB)
Title: Improvements in or relating to the construction of cardboard boxes
IPC: B65D5/465
Filed: 1943-02-24
Abstract: 564,518. Partitioned boxes. CHAPMAN, Ltd., H. W., and BATTSON, H. Feb. 24, 1943, No. 3008. [Class 18] A partition-forming panel of the shape shown in Fig. 2 is secured to a cardboard blank for forming a box shown in Fig. 1 by stitching or adhering strip 14 of the panel to strip 10 of the blank. On erecting the box, projections 17 on the partition enter slits 19 to form a 3-ply partition ; tongues 8 are inserted in slots 9 to hold the box erect. Handle portions 16 may be provided. The box need not be collapsable. Ventilation apertures 22 may be provided. The container may be used for the transport of fruit.
Patent GB-432508-A (GB)
Title: An improved method of coating articles
IPC: B05D1/00
Filed: 1934-01-29
Abstract: Materials such as compound paper sheet material for use in the manufacture of panels, table tops, &c. are coated with a composition requiring baking without subjecting the material to the baking operation, by applying the composition in liquid form to a metallic surface, baking the composition, transferring the baked film to the material, and fixing it thereto by means of an interposed bonding-sheet impregnated with adhesive.  The composition is a synthetic resin lacquer prepared by reacting one part by weight of glycerine with two parts of phthalic anhydride with the application of heat until a temperature of 200--210 DEG  C. is reached, when the reaction is arrested by adding a solvent such as diethyl oxalate, the lacquer thus prepared being diluted with acetone.  Dyes or pigments may be added, e.g. a white pigment is provided by adding titanium oxide and silica.ALSO:Materials such as compound paper sheet material for use in the manufacture of panels, table tops, &c., are coated with a composition requiring baking without subjecting the material to the baking operation, by applying the composition in liquid form to a metallic surface, baking the composition, transferring the baked film to the material, and fixing it thereto by means of an interposed bonding-sheet impregnated with adhesive.  The composition is a synthetic resin lacquer prepared by reacting one part by weight of glycerine with two parts of phthalic anhydride with the application of heat until a temperature of 200--210 DEG  C., is reached, when the reaction is arrested by adding a solvent such as diethyl oxalate, the lacquer thus prepared being diluted with acetone.  Dyes or pigments may be added, e.g. a white pigment is provided by adding titanium oxide and silica.
Patent GB-1408022-A (GB)
Title: Apparatus for atomising a viscous liquid
IPC: B05B7/04
Filed: 1972-10-17
Abstract: 1408022 Liquid fuel atomizers MIDLANDROSS CORP 17 Oct 1972 [29 Oct 1971] 3033/75 Divided out of 1408021 Heading F4T The disclosure is substantially identical to that in Specification 1,408,021, but the claims relate to apparatus for atomizing a viscous liquid comprising an annular chamber which has two annular outlet orifices therefrom at one end thereof, the orifices being coaxial with the chamber, the chamber being bounded at said one end by an annular head, a disc-like plate external to said chamber and in confronting coaxial relationship with and spaced from the inner annular orifice, an outlet opening in the head disposed radially between the inner and outer annular orifices, a supply line for supplying the viscous liquid to the opening, and means for supplying a gas mixture to the annular chamber under pressure whereby in operation there is formed a substantially radially expanding film of viscous liquid along an outer surface of said head, which film is atomized by an intersecting flow of said gas mixture through the outer annular orifice.
Patent GB-919396-A (GB)
Title: Ball perforator
IPC: B26F1/14
Filed: 1961-01-26
Abstract: 919,396. Selective punching machines. SMITHCORONA MARCHANT Inc. Jan. 26, 1961 [Jan. 27, 1960], No.3053/61. Class 31 (2). A machine for perforating a tape 110 comprises a series of pivotally-mounted spring-biased punch operating levers 40 which are retained by the combined action of a cyclically operable cam 60 and of latches 42, or 50, forming part of the pivotally-mounted spring-biased armatures 26, or 28, of selectively-operable electromagnets 12, the arrangement being such that when an electromagnet is energized, the corresponding latch 42, or 50, is raised and the cam permitted to rotate to release the corresponding lever 40 and enable its toe end 64 to act, through an impact member 108, on a ball 106 to press the tape against the cutting edge 125, fig. 3, of an opening 122 in a die insert 104 so as to punch a hole in the tape. At the same time, a feed hole is punched in the tape by means of the toe end 78, Fig. 8, of a pivotallymounted spring-biased lever 72 acting, through an impact member 109, on a ball 107 to press the tape against the cutting edge of an opening 123 in the die insert. After each punching operation, the cam 60 rotates to re-set the levers 40, 72 in their pre-punching positions. The shaft 80 of the cam is driven by an electric motor 90 through a friction clutch 82, the driven element 81 of which is magnetically released from a latching position to permit rotation of the shaft 80. The tape is fed stepwise between successive punching operations by means of a sprocket-wheel 136, Fig. 9, mounted on the same shaft as a ratchet-wheel 134 with which co-operates a spring-influenced pawl 154 mounted by means of an eccentric screw 150 on an arm 148 of a pivotally-mounted spring-biased lever 74 co-operable with a cyclically operable cam 130.
Patent GB-1375585-A (GB)
Inventor: RUFFO A
IPC: D04H1/42
Filed: 1972-01-21
Abstract: 1375585 Lap formers: non - woven fabrics JOHNSON & JOHNSON 21 Jan 1972 [21 Jan 1971] 3060/72 Headings D1N and D1R A method of forming a non-woven web in a lap forming machine having two separate sources of fibre which are supplied to respective lickerins 317, 338. The fibres are doffed from the lickerins by respective airstreams through passages 344, 346 which then intermix in region 334 before being condensed on a foraminous belt 381. A separating member 400 is extensible between the separate fibre carrying airstreams to control the degree of intermixing and hence the distribution of fibre types through the thickness of the produced web. The lickerins are clothed and are rotated suitably for the fibre types being handled, e.g. a rayon bat 335 and a pulp board sheet 310. Also the doffing air streams are controlled, e.g. by the adjustable member 360 in duct 346. The fibre carrying airstream leading to the web forming surface is sealed thereto by rollers 369 and spring biassed seals (376), Fig. 4 (not shown), and is finally exhausted through duct 289. WEB. A web produced by the above method has a predominance of one fibre type on each surface and a transition zone therebetween. The thickness of the transition zone is controlled by advancing the dividing member 400, Fig. 6. The apparatus can also produce uniformly homogeneous webs or layered webs as can the aparatus which is claimed together with the above described apparatus in Specification 1,375,584. The following fibres are referred to as being suitable for producing webs by the above methods and apparatus: short fibres of: wood pulp, cotton linters, asbestos or glass; long fibres of: vinyl chlorate, vinyl acetate, nylon 6, nylon 66, viscose staple rayon, cupra-ammonium rayon, saponified esters, cellulose acetate, cellulose triacetate, acrylic, polyester, polyvinyl chloride, polyethylene, polypropylene, fluorocarbon, e.g. polyetetrafluoroethylene, cotton, flax, jute, wool, silk, ramie, or protein. Suitable methods of subsequent bonding of the web disclosed are: web saturation bonding, foam bonding, print bonding, fibre bonding, fibre interlocking, spray bonding, solvent bonding, viscose bonding and mercerization. Suitable bonding agents disclosed are: hydroxyethyl cellulose, melamine formaldehyde, urea formaldehyde, acrylic resins, polyvinyl acetate, polyvinyl chloride, polyvinyl acrylate, polyethyl acrylate, polymethyl methacrylate, polyvinyl butyral, cellulose acetate, ethyl cellulose and carboxymethyl cellulose.
Patent GB-1457952-A (GB)
Title: Isotopic separation
IPC: B01D59/50
Filed: 1974-01-23
Abstract: 1457952 Isotopic separation UNIVERSITY OF CALIFORNIA, REGENTS OF 23 Jan 1974 [26 Jan 1973] 03214/74 Heading B1X A chemical compound, which contains at least two isotopes of the same element is subjected to a beam of light so that molecules containing one of the isotopes are raised to an excited electronic state in which the molecules are or can be dissociated so that the said isotope enters into a different stable chemical condition which can be separated from the undissociated molecules. The monochromatic light suitable for the process may be supplied by a laser. Isotopes of carbon and oxygen and deuterium may be recovered from formaldehyde and gaseous bromine or iodine chlorine can be treated.
Patent GB-622849-A (GB)
Title: Improvements in or relating to engineers' vee blocks
IPC: B23B47/28
Filed: 1947-02-03
Abstract: 622,849. Vices. BRIDSON, Ltd., S. H., and VALLANCE, D. B. Feb. 3, 1947. No. 3217. [Class 61(ii)] [Also in Group XXII] A V-block device comprises a main V- block 10, a rigid arm 12 which is rigidly fastened to the V-block and extends parallel to the base line thereof, and an auxiliary support 11 adjustable along the arm 12 for supporting the end part of a rod or like member laid on the V-block. The main V-block is secured to the arm 12 by bolts, and the auxiliary support is clamped to the arm in its adjusted position by a bolt 20. The block 10 is fitted with a work-clamping member 25 adjustable by means of a screw 30 and fitted with a hardened steel drill bush 37 held in place by a screw 38. Drill bushes 48 of different sizes are fitted tightly in holes in the main and auxiliary V-blocks to make the device self contained. To locate the work axially a swivelling end stop 44, which may be calibrated, is provided, having a rod 41 passing through the block 10 and clamped by a screw 43. The V-grooves are cut away segmentally as indicated at 23, 24 to improve the adaptability of the device.
Patent GB-1037670-A (GB)
Title: Improvements in or relating to apparatus for and methods of forming members
Inventor: PHILLIPS CHRISTMAS
IPC: B21D7/04
Filed: 1964-01-24
Abstract: 1,037,670. Bending. REDMAN TOOLS Ltd. March 18, 1965 [Jan. 24, 1964], No. 3252/64. Addition to 969,380. Heading B3E. Apparatus for forming an elongated member made of a malleable material comprises a pressure head having a pair of pressure rollers, a former, first guide means along which the pressure head may be urged towards the former and second guide means along which the former may be guided, which second guide means is at an angle to the first guide means. A workpiece 15 is clamped to a former 14 at the end nearest a pressure head 18. The former 14 is then moved by piston and cylinder D underneath the pressure head 18 which is urged along guides 17 towards the former 14 by piston and cylinder means B. The pressure head 18 carries on a pivoted member 21 two rollers 23 to engage the work, the inclination of the member 21 being controlled by piston and cylinder means C. The guides 17 may pivot about the base frame to form the end of the work on to the former, the former being held stationary.
Patent GB-1495641-A (GB)
Title: Peripherally heated shaft furnace and method of operation
IPC: F27B1/08
Filed: 1975-01-24
Abstract: 1495641 Air and fuel supply to shaft furnaces G KOHN 24 Jan 1975 [24 Jan 1974] 3308/75 Heading F4B In a shaft furnace, fuel and air are supplied independently in radial streams at different levels, each of a plurality of circumferentially spaced fuel nozzles being associated with an air supply nozzle so closely adjacent to it that the streams of fuel and air interfere with each other within the charge. Superposed ring mains 11 are connected to superposed manifolds 5, each extending round part of the circumference of the shaft furnace and being enclosed in a box structure with refracting bricks 7 through which inclined apertures 8 connect the manifolds with the furnace. Each fuel supply manifold is preferably immediately below an air supply manifold, and supply outlets 8 are directed radially and downwardly. Flue gas may be supplied to the air manifolds, and the fuel and air supply to each segmental manifold may be independently controlled.