baber/WOPTO huggingface dataset:
Patent GB-784494-A (GB)
Title: Improvements in feed chucks for automatic screw machines and the like
IPC: B23B13/12
Filed: 1955-06-10
Abstract: 784,494. Lathe details. HARDINGE BROS., Inc. June 10, 1955 [Aug. 25, 1954], No. 16733/55. Class 83 (3). A stock-feed-chuck for automatic lathes 4 comprises a tubular body 8 having a number of longitudinally-extending slots 11 and springs 14 arranged in the slots, with bowed middle portions adapted to engage the stock 10, means being provided for holding the springs in their operative position. The rear ends 15 of the springs fit into recesses 16 in the rear walls of the slots, and the front portions 17 of the springs rest in grooves in the threaded periphery of the body. A screwed sleeve 20 fits over the end of the body and is provided with a lip 21 which engages the spring ends projecting from the grooves. Thus, by screwing up the sleeve, the springs may be bowed more to increase the pressure of their engagement with the stock. The bowed parts of the springs may be flat or curved in cross-section, the latter form being employed for feeding round stock. Specification 784,495 is referred to.
Patent GB-845544-A (GB)
Title: Improvements in and relating to the concentration of solutions
Inventor: TYE FRANK LAURENCE
IPC: G21C1/07
Filed: 1956-05-30
Abstract: 845,544. Electrodialysis. PERMUTIT CO. Ltd. May 23, 1957 [May 30, 1956], No. 16748/56. Drawings to Specification. Class 41. A process for concentrating an aqueous solution of a non-electrodialisable substance, i.e. a non-electrolyte or an electrolyte having ions too large to pass readily through membranes used in an electrodialytic process, e.g. diptheria antitoxin solutions or sugar solutions, comprises adding to the solution an electrolyte. e.g. sodium chloride, of which the ions at least of one sign are water-bearing, i.e. carry water molecules with them through the membranes during electrodialysis, and electrodialysing the solution to remove the water-bearing ions and some water. The electrodialysis may be carried out by placing the solution in, or passing it through, the centre compartment of a three compartment cell in which an anionic permselective membrane bounds the anode compartment and a cationic permselective membrane bounds the cathode compartment. If desired, one of the membranes may be replaced by a non-selective membrane, e.g. of regenerated cellulose. The added electrolyte should be one in which the cations and/or anions are hydrated in aqueous solution, and preferably are inorganic, univalent ions. The process is applicable to the concentration of aqueous solutions which contain a non-aqueous liquid, so long as the amount of liquid present is not such as to reduce the degree of hydration to a point where satisfactory concentration is unobtainable, e.g. a solution containing up to 50 % alcohol may be concentrated by the process. In a specific embodiment, 400 gms. sodium chloride where added to 4À5 litres of sugar solution which was circulated at 1 litre per minute through the alternate compartments of a multicompartment cell having alternate anionic and cationic permselective membranes, a 1 % sodium chloride solution being passed in counter-current through the remaining compartments. A current of 4 amps was passed for 4¢ hours to raise the concentration from 20 % w/w to 40 % w/w. Some or all of the anionic, or alternatively, of the cationic permselective membranes, may be replaced by non-selective membranes.
Patent GB-656233-A (GB)
Title: Method of and apparatus for burning combustible material in gaseous or atomised form
IPC: F23C9/00
Filed: 1947-06-25
Abstract: 656,233. Burners. NAAMLOOZE VENNOOTSCHAP DE BATAAFSCHE PETROLEUM MAATSCHAPPIJ. June 25, 1947, No. 16800. Convention date, June 25, 1946. [Class 75(i)] A burner comprising a combustion chamber 2 provided with a slit 1 for the delivery of a sheet-like jet of a combustible mixture of air and fuel in gaseous, spray, or powder form has the chamber shaped correspondingly to the slit and so dimensioned, by properly choosing the ratio of width or diameter of the chamber to its length, as to cause the formation of vortices 3 and 5 of burning gases on both sides of the jet, and to prevent backward flow of external gas or air into the chamber between the walls thereof and the stream of gas emerging from the chamber. The slit may be annular or flat. Tangential swirl may be imparted to the combustible mixture passing through the slit. To achieve the necessary vortex effect on both sides of the tube-like jet the diameter and length of the combustion chamber must be chosen to lie within the region III of the graph, Fig. 4, showing the relation between length L and diameter D for a given jet diameter or velocity with given tangential component. Regions II-III, I-II-III, and I-II are unstable regions where unwanted flow patterns I or II may arise. The annular slit may be provided by a rotating cup-type atomizer.
Patent GB-663076-A (GB)
Title: Improvements in or relating to warp knitting machines
IPC: D04B27/08
Filed: 1948-06-23
Abstract: 663,076. Knitting-machines. VITEK; M. June 23, 1948 [July 10, 1947], No. 16846/48. Class 74 (ii). A warp machine comprises a single camshaft actuating needles, sinkers, pressers and warp guides and a fixed shaft supporting, members carrying needle, sinker and presser bars. In one embodiment, Figs. 3, 4, the sinker bar 11 and presser bar 10 are each carried by a lever pivoted on the fixed shaft F and each having a follower midway its length engaged by a positive cam on the cam-shaft R. A similar lever 18 having a follower 19 engaged by a cam 20, controls the swinging of the warp guide bars 22, 23 about a support shaft A, through a link 38 and a lever 37. The warp guides are shogged in known manner. The bar 22 is raised clear of the bar 23 manually by a forked lever 44 acting on a pin 42 secured to the hub 35 of the arm 28 supporting the bar 22, for threading up purposes. The needle bar 46 is oscillated by a cam 47 and follower 52 and is guided by being attached to a tube 48 sliding in sleeve 49 secured in brackets 50, 54 on the shafts F and R. In the second embodiment, Fig. 9, the guidebars 22, 23 are carried on a lever 61 pivoted on the shaft F and oscillated by a follower 19 and cam 20. The bar 22 is pivoted on the arm 61 and may be raised manually clear of the needles, being held in its extreme positions by a spring snap device 69. The sinker and presser bars are mounted and operated as in the first embodiment. The needle bar 46 is carried by an arm 80 mounted freely on the shaft R and is oscillated by a lever 62 linked to the arm 80 and carrying a follower 52 engaged by a cam 47. Specification 660,798 is referred to.
Patent GB-1132554-A (GB)
Title: Apparatus for producing an electron beam
IPC: H01J1/20
Filed: 1967-04-13
Abstract: 1,132,554. Cathode constructions. INTERNATIONAL BUSINESS MACHINES CORP. 13 April, 1967 [23 May, 1966], No. 16946/67. Heading H1D. A hollow conical or pyramidal cathode 10 of refractory material is indirectly heated at its apex by an electron gun to produce emission from the exterior of the apex. A W cathode is formed from solid rod by grinding and sparkmachining, the wall thickness being increased towards the apex. The cathode mounted in a water-cooled assembly 24, 26, 28 is heated by an electron beam 16 from an A.C. heated W spiral filament 20, shaped by an accelerating electrode 22. The cathode may be used in an electron microscope or probe system or electron beam machining, welding or recording apparatus having a demountable vacuum system.
Patent GB-430941-A (GB)
Title: Improvements in or connected with aircraft
IPC: B64C3/54
Filed: 1934-06-08
Abstract: 430,941. Air - brakes for aircraft. BOULTON & PAUL, Ltd., Riverside Works, and NORTH, J. D., Hill House, Eaton, both in Norwich. June 8,1934, No. 17028. Addition to 413,662. [Class 4] The hinged flap 10 provided on the under surface of an aircraft wing, as in the parent Specification, is hinged by members 29 to a rod 12 and through intermeshing sectors 30, 31 is operated together with an auxiliary flap 21 on actuation of the pilot's control 28 to deflect the flap 21 and facilitate admission of air for expansion of the chamber 15. Actuation of the control to open or close the chamber simultaneously moves a flap 22 to close or open a passage 20 which connects the chamber to a region of relatively low pressure.
Patent GB-612909-A (GB)
Title: Improvements in vacuum-operated chucks for supporting hollow vessels
IPC: B23B31/30
Filed: 1946-06-06
Abstract: 612,909. Vacuum chucks. MIDLAND METAL SPINNING CO., Ltd., and WYER, J. M. June 6, 1946, No. 17152. [Class 60] A vacuum chuck, for holding a vessel on which a neck has been formed, comprises a hollow cylindrical shell A having an outwardlytapering portion a near its inner end to receive the neck of the vessel when the vacuum is applied. A cylindrical block B, which is a sliding fit inside the shell A, has a disc H of resilient material secured to its outer face and is pressed in an outward direction by springs C, being prevented from turning in the shell by pins D; air passages E, G, are provided in the shell and the block respectively. In operation a vessel J is placed over the chuck, as shown in Fig. 1, and suction is applied, causing the block B to retract against the force of the springs and causing the neck of the vessel to engage on the taper portion a of the shell, thus forming centering means for the neck of the vessel and affording the drive thereto. Corrugations h<SP>1</SP> and j<SP>1</SP> may be provided in the disc H and the vessel J respectively, and the taper portion a of the shell may be roughened to afford a stronger grip on the neck of the vessel.
Patent GB-791490-A (GB)
Title: Improved shut-off device for flexible tube lines
IPC: F16K7/06
Filed: 1956-06-04
Abstract: 791,490. Pinch cocks. AKTIEBOLAGET MANUS. June 4, 1956 [June 4, 1955], No. 17231/56. Class 135. A shut-off device for a flexible tube 1 comprises a mounting 2 to which the tube is attached and a frame-like member 9 surrounding the tube and connected to a bell-crank lever 7, 8 to form a toggle joint. The bell-crank lever is pivoted at 6 to the mounting 2 and by means of a shaft 10 to the member 9 which has at its lower extremity a shaft 12 surrounded by a roller 11 for engaging the tube 1 to compress it against the mounting 2 when the bell crank lever is moved in a clockwise direction about the pivot 6. The mounting 2 has a pair of projections 13 providing guide surfaces 15 along which the roller 11 passes to recesses 14 when the lever 7, 8 is operated to close the tube. During the closing movement the toggle mechanism passes through a dead-centre position so that the tube remains closed until the bell crank lever is turned in the opposite direction. As shown, the mounting 2 is fitted at the end of the tube 1 and is formed with abutments or claws 4 for coupling the tube to another tube.
Patent GB-1066513-A (GB)
Title: Method of continuous determination of oxygen in gases and apparatus for carrying out this method
IPC: G01N27/49
Filed: 1965-04-23
Abstract: 1,066,513. Gas analysis. CESKOSLOVENSKA AKADEMIE VED. April 23, 1965 [April 23, 1964], No. 17238/65. Heading G1N. Apparatus for the determination of oxygen in a gas comprises a standard lead-acid accumulator with a hollow graphite electrode immersed in the acid. A potentiometer supplied from the accumulator provides 175mV above the negative plate to the graphite electrode, and the resulting current is measured with the gas flowing through the hollow electrode.
Patent GB-1003797-A (GB)
Title: Improvements relating to apparatus for the injection moulding of plastics
IPC: B29C45/34
Filed: 1963-05-01
Abstract: 1,003,797. Injection moulding machines. M. M. DUNKEL, [trading as E. LEYBOLD'S NACHFOLGER]. May 1, 1963 [May 2, 1962], No. 17243/63. Heading B5A. An injection mould 4, 5 is enclosed by an evacuable jacket comprising at least two cooperating relatively movable parts 6, 7 provided with compressible sealing rings 8, 9 which project beyond the co-operating faces of the mould parts so as to permit vacuum-tight closure of the jacket 6, 7 and evacuation of the mould before the mould parts are closed to-. gether. A feed hopper for the material is also closed and evacuable (Fig. 1, not shown).
Patent GB-568167-A (GB)
Title: Improvements relating to electric discharge lamps
IPC: H05B41/18
Filed: 1943-10-20
Abstract: 568,167. Discharge lamps. SIEMENS ELECTRIC LAMPS & SUPPLIES, Ltd., and ALDINGTON, J. N. Oct. 20, 1943, No. 17257. [Class 39 (i)] An electric discharge lamp has a thermionic cathode 3 having major and minor dimensions and heated independently of the discharge to an even overall temperature, and having its major dimension normal to the axis of the discharge, wherein the distance between the electrodes and the pressure of the filling are adjusted so that the cross-sectional form of the discharge throughout its entire length substantially corresponds to the dimensions of the cathode facing the discharge. The distance between electrodes should be less than twice the greatest dimension of the cathode and the filling pressure should be between 100 and 1000 millimetres of mercury. The cathode 3 may comprise a compound helix of tungsten wire enclosing a billet of barium and strontium silicate with thorium oxide. In an alternating current installation, the other electrode 4 is of similar construction, but in a direct current lamp it may consist of a block of refractory material with a worthing face shaped to the dimensions of the cathode. The lamp may be started by creating a voltage surge by momentary short-circuiting by a switch 6. The envelope 1 may have a cross-section similar to the cathode dimensions.
Patent GB-875244-A (GB)
Title: Improvements in or relating to aerials
Inventor: CHAMBERS DEREK STANLEY
IPC: H01Q5/48
Filed: 1959-05-21
Abstract: 875,244. Aerials. BELLING & LEE Ltd. April 1, 1960 [May 21, 1959], No. 17271/59. Drawings to Specification. Class 40(7) A dual band aerial comprises two dipoles, one resonant in each band. The feeder to the radio equipment is connected to the higher frequency dipole and a transmission line joins the two dipoles and extends beyond the lower frequency dipole. Parasitic elements may be provided and the dipoles may be bent, folded, or straight. The aerial may comprise only the transmission line and one of the dipoles, the device being used to convert a single band dipole to a dual band aerial. The transmission line may be flexible, or swivellable, so that the dipoles and the associated parasitic elements may be orientated to receive signals from stations not in alignment with both dipoles.
Patent GB-644236-A (GB)
Title: Improvements in ambulance stretchers
IPC: A61G1/02
Filed: 1948-06-28
Abstract: 644,236. Stretchers. AUSTIN MOTOR CO., Ltd., and STANFIELD, J. R. June 28, 1948, No. 17280. [Class 108(i)] An ambulance stretcher has the outer ends of each toggle link 1, 2 pivoted by a relatively long vertical bearing 9 to the bracket 13 which is attached to the inner side of the longitudinal bearer 14 and to the wheel bracket 12 which is secured to the underside of the bearer 14. The toggle links 1, 2 are preferably of channel section and have auxiliary channel section-members welded therein, one auxiliary member extending beyond the common pivotal connection 3.
Patent GB-1151977-A (GB)
Title: Porous Tubes
IPC: B29C67/20
Filed: 1968-04-10
Abstract: 1,151,977. Moulding porous plastics tubes. RUHRCHEMIE A.G. and MANNESMANN A.G. 10 April, 1968 [22 April, 1967], No. 17291/68. Heading B5A. Porous plastics tubes of wall thickness 5-45 mm. are made from particles of a plastics material by introducing the particles uniformly into a tube mould which is shaken at a constant frequency in a direction at right angles to its longitudinal axis and sintering the particles. The moulded material is preferably polyethylene. The tube mould preferably comprises two steel tubes 6<SP>1</SP>, 6<SP>11</SP> held coaxially by end pieces 7, the end pieces having a central cavity of diameter equal to the internal diameter of tube 6<SP>11</SP>. The mould is filled with its longitudinal axis vertical from hoppers associated with a vibrating gutter with a cone placed on top of the mould to direct the particles into the cavity. The mould is vibrated in a horizontal direction during the filling and the plastics material is sintered in an oven in which the circulating heating gas can contact both the inside of tube 6<SP>11</SP> and the outside of tube 6<SP>1</SP> of the mould.
Patent GB-813422-A (GB)
Title: Crucible furnace for melting metals and having a zone for preheating the charge
IPC: F27B14/00
Filed: 1957-05-31
Abstract: 813,422. Tilting crucible furnaces. REFRACTARIOS ESPECIALES CASTEL, S.L. May 31, 1957 [Aug. 14, 1956], No. 17427/57. Class 51 (2). A tilting crucible furnace comprises a lower section 1 enclosing the crucible 4 and defining therewith a combustion chamber 8 fired by a burner 6 having a preliminary combustion chamber 7, and an upper section 2 enclosing a refractory preheating hopper 21 and defining therewith an annular heating space 31 having a chimney 33. Hot gases pass from chamber 8 through ports 10 formed in a plate 11 forming the top of the lower section 1 and supporting the upper section 2 which is formed with a skirt 20 below a retaining ring 24 having ports 26 for the passage of the hot gases to the space 31. The hopper seats on the inner edge 23 of the ring 24 and is closed by a removable cover 27. The lower section pivots about an axis 3, the crucible 4 projecting far enough through the plate 11 to prevent damage to the furnace on pouring. The upper section 2 is carried by an arm 15 sliding along a column 16 by means of rack and pinion gearing 17, 18, the column being rotatably mounted on a base 19. In operation, the upper section is raised above the crucible and swung away therefrom by rotation of the column, prior to tilting of the lower section to pour out the molten metal.
Patent GB-1046045-A (GB)
Title: Urea derivatives
IPC: C07D233/24
Filed: 1965-04-26
Abstract: The invention comprises urea derivatives of the general formula <FORM:1046045/C2/1> (in which R represents a straight or branched alkylene group having from 2-12 carbons wherein a hydrogen atom may be substituted by a hydroxyl group, the two groups R1 either both represent hydrogen atoms or together an ethylene group (in which latter case the group R is also an ethylene group) and R2 represents a basic radical of the formula <FORM:1046045/C2/2> wherein R3 represents a straight or branched alkylene group having 2-4 carbons, in which group a hydrogen atom may be replaced by a hydroxyl group, or R2 represents a cyano or esterified carboxyl group); and therapeutically useful acid addition salts of said urea derivatives having a basic radical R2; and processes for the preparation thereof (a) by reacting an aromatic compound of the formula <FORM:1046045/C2/3> wherein X is the isocyanate group or a reactive carbamic acid group, with a diamine of the formula <FORM:1046045/C2/4> or (b) by reacting an aromatic amine of the formula <FORM:1046045/C2/5> with a diisocyanate or dicarbamic acid derivative of the formula X-R-X.  Subsequently compounds in which R2 is a cyano group may be reacted with H2S or alcoholic HCl and then with the diamine H2N-R3-NH2 or compounds wherein R2 is an esterified carboxyl group may be reacted with said diamine to form a compound wherein R2 is <FORM:1046045/C2/6>
Patent GB-562557-A (GB)
Title: Improvements in or relating to the covering of electrical conductors with an insulating coating of a thermoplastic material
IPC: H01B13/14
Filed: 1942-12-09
Abstract: Synthetic thermoplastic materials containing the grouping CH2=C< are extruded in the form of sheets or as a rectangular cross-sectioned tube and the sheets or tube with the electrical conductors sandwiched therebetween or contained therein are passed between grooved rollers which press together the sheets or the walls of the tube while the sheets or tube are still in a softened condition.  The electrical conductors are fed from the extrusion head inside the tube or between parallel sheets issuing from the head.  The material may be derived from polymerizable compounds such as ethylene, isobutylene, vinyl chloride or acetate, vinylidene chloride, methyl acrylate or methacrylate, or mixtures thereof.  The sheets may include fabric reinforcements and each sheet may comprise two or more layers of synthetic thermoplastic materials.
Patent GB-1000908-A (GB)
Title: Improvements in or relating to devices for attaching a spring platform to a frame member
Inventor: TURLEY ALFRED
IPC: A47C31/04
Filed: 1963-05-03
Abstract: 1,000,908. Spring upholstery. VONO Ltd. July 23, 1964 [May 3, 1963], No. 17508/63. Heading A4M. A device for attaching helical springs 2 of a spring platform to a frame member 1 is formed from a length of wire bent into a zig-zag and then bent to form two parts in planes at an angle of less than 90 degrees, one part being engaged by the hook-ends 3 of the springs and the other part fitting into a groove 6 in the member 1, the groove being at an angle to the horizontal similar to the angle between the parts of the device.
Patent GB-458374-A (GB)
Title: Improvements relating to the cleansing of rigid materials
IPC: C23G5/06
Filed: 1935-06-18
Abstract: In the cleaning of metal and other rigid articles as described in the parent Specification, by warm volatile organic solvent of fat emulsified in water by an emulsifying agent such as an alkali-fat or resin soap, an insoluble metal soap, or a textile wetting-agent, preceded and/or followed by treatment with a fat. solvent which is cold, hot, or vaporized: (1) The emulsion is sprayed on to the articles, and is used cold or warm; the article, the spraying nozzle, or both may be moved; (2) The treatment-chamber may be closed e.g. a bell with its open end below solvent or other liquid, or may be filled with solvent vapours e.g. an open vessel heated at the bottom to vaporize solvent and cooled at the top to condense vapour; (3) When a closed chamber is used the articles may enter and leave through the liquid seal, e.g. on a mechanical conveyer which may carry the cleansed articles through a drying chamber; if the sealing liquid be a solvent the passage therethrough may be or form part of the pre-and after-treatments.
Patent GB-441198-A (GB)
Title: Hydraulic transmission for machine tools
IPC: B23Q5/06
Filed: 1934-06-13
Abstract: 441,198. Rotary engines. CINCINNATI BICKFORD TOOL CO., Oakley, Cincinnati, Ohio, U.S.A. June 13, 1934, No. 17538. Convention date, June 14, 1933. [Class 110 (ii)] [See also Group XXIX] In a variablespeed hydraulic transmission for driving a machine tool element of the kind comprising a plurality of rotor units with slidable vanes, the width and depth of the working surfaces of the vanes of each rotor vary from those of the working surfaces of some or all of the other rotors. In the drilling machine shown in Fig. 2, three rotors A, B, C, are secured to a sleeve 23 keyed or splined to the shaft 5, and separated by discs 18. The housing has ring members such as 17a, Fig. 4, provided with inlet and outlet ports, and the rotors have slidable vanes 21 working on the ring members. Arcuate passages 48, 49 connected with the inlet and outlet ports control inlet and discharge of liquid to and'from chambers 20 at the inner ends of the vanes. The number of rotors in operation is determined by the position of plungers V1, V2, V3, forming a selector valve as described in Specification 441,199. The vanes of the rotors may be in staggered relationship.