baber/WOPTO huggingface dataset:
Patent GB-1218882-A (GB)
Title: Improvements in or relating to spools for film or other elongate flexible articles
Inventor: SPOSIMO DINO
IPC: G03B21/32
Filed: 1969-01-27
Abstract: 1,218,882. Tape reels; adjusting spindlereceiving bore. MUPI S.r.1. 27 Jan., 1969 [30 Jan., 1968], No. 4413/69. Heading B8H. A spool for use selectively with shafts of different diameters comprises a central drum 1 and two end flanges; at least three members 20 mounted for limited movement relative to the drum and flanges, each member 20 having an inner portion having a surface 20D which together with corresponding portions of the other members defines an opening for a small diameter shaft, and each member 20 having a cam profile disposed outwardly of the inner portion; and actuating means, e.g. pins 10, coaxial with the central drum 1 and capable of limited angular movement with respect to the drum, the pins 10 co-operating with the corresponding cam profiles such that angular movement of the actuating means causes substantially radial movement of the inner portions which form openings of different sizes. The members 20 are each biased in a radially outwards direction by means of a finger 20B engaging a pin 6. The hub A to which the members 20 are attached is provided with a central opening 7 to accommodate large diameter shafts, which opening 7 is partially masked by the members 20 when smaller shafts are to be accommodated. The angular movement of the pins 10 is limited by slots 11 in which the pins 10 are located.
Patent GB-328990-A (GB)
Title: Improvements in, and relating to, brick moulds
IPC: B28B7/10
Filed: 1929-02-09
Abstract: 328,990. Firth, W. Feb. 9, 1929. Moulding bricks; moulds. - A brick mould, of the kind wherein the mould box when filled is inverted and raised clear of the moulded article, comprises a box-like structure a, open top and bottom, slidably mounted on four vertical pillars d by means of lugs c. Attached to the pillars d are members g which carry the bottom plates f. The mould box a can be removed and replaced for use in a reversed position. To support the structure a in its raised position, slots may be provided in the pillars d for engaging a loose key.
Patent GB-562461-A (GB)
Title: Improvements in electromagnetic relays
IPC: H01H51/32
Filed: 1943-03-19
Abstract: 562,461. Electromagnetic relays. PLESSEY CO., Ltd. March 19, 1943, No. 4520. Convention date. March 19, 1942. [Class 38 (v)] In a relay responsive to a special frequency of alternating or intermittent current, two reeds 13, 14 having the same natural period of vibration and carrying armatures or magnets 16, 17 arranged near the pole 11 of the electromagnet 12, vibrate towards and away from each other to close and open. contacts 18, 19. If the reeds vibrate at 60 cycles per second they will thus be responsive to an intermittent current of 60 pulses per second or to an A.C. current of 30cycles. The relay can be made responsive to A.C. of 60 cycles by having a second polarizing winding energized by D.C. current on the pole 11, Fig. 4 (not shown). This will convert the A.C. into intermittent D.C. current of 60 cycles. The same arrangement can also be made responsive to intermittent D.C. of 30 cycles by arranging the polarizing winding in opposition and so producing A.C. of 30 cycles. By utilizing the above principle, the same relay can be made to operate under current of one frequency, which operation will then make it selective to current of double the frequency. A circuit may also be made responsive to a combination of frequencies by use of two relays. In a modified form of relay, Fig. 3 (not shown), permanent magnets replace the armatures 16, 17. U.S.A. Specification 2,190,685 is referred to.
Patent GB-887539-A (GB)
Title: Improvements in or relating to control systems for machine tools and the like
IPC: G05B19/16
Filed: 1960-02-09
Abstract: 887,539. Magnetic record apparatus; programme control systems. TELEFUNKEN G.m.b.H. Feb. 9, 1960 [Feb. 13, 1959], No. 4533/60. Drawings to Specification. Classes 38 (6) and 40 (2). In a machine control system employing a record tape bearing control pulses, each of which is detected by a first magnetic head to effect a switching causing the reduction of speed of the machine, and then detected by a second head to stop the machine, the amplifiers associated with each head have a frequency gain characteristic such that the gain decreases with frequency whereby the output voltage is maintained by whichever head and amplifier is in operation when the machine has been switched to the lower speed.
Patent GB-292201-A (GB)
Title: Improvements in or relating to thermionic frequency changing or modulating devices, suitable for use in wireless telegraphy and telephony
IPC: H04B1/26
Filed: 1927-02-18
Abstract: 292,201. Gill, E. W. B., and Donaldson, R. H. Feb. 18, 1927. Thermionic generators ; thermionic heterodyne receivers.- A frequency-changing or modulating circuit comprises a negative-resistance four-electrode valve 3 arranged so that its inner grid constitute an output electrode and its outer grid an input electrode, means 1 for applying a modulating-frequency or the frequency to be changed (which may itself be modulated by signals) to the input circuit 2, and means for maintaining the output circuit 6 in oscillation at a different frequency so that the amplitude of the oscillations is controlled in accordance with the first frequency. A reaction coil coupled to the input circuit is connected between the anode and cathode of the valve. When the voltages of the anode and grids and the filament emission are adjusted as described in Specification 252,079, the output circuit oscillates at its natural frequency.
Patent GB-736882-A (GB)
Title: Improvements in or relating to wound clip applicators
IPC: A61B17/068
Filed: 1953-02-19
Abstract: 736,882. Wound-closing appliances. TECHNICAL OIL TOOL CORPORATION. Feb. 19, 1953 [March 24, 1952No. 4671/53. Class 81 (2). A wound clip applicator comprises a elongated housing for receiving a stack of wound clips and having a discharge opening for the clips, a plunger within the housing for urging the clip stack forwardly, holding lugs at the head of the housing which override the leading clip to hold it in position and, at the sides of the housing spring urged forceps arms having inturned jaws which on compression of the arms drive the clip ends inwardly and which have a lateral width less than the spacing of the holding lugs whereby to pass freely between them. The housing 30 is provided with a longitudinal slot 35 on one side and contains a stack of clips 31 held in applying position by a plunger 36 and spring 37. A gate 54 closes the rear end of the housing 30 and a cut back discharge opening 43 surrounded by a collar 40 is provided at the forward end of the housing 30. Laterally spaced lugs 41 on the collar 40 hold the ends of the leading clip 31 in the applicator. Inturned jaws 33 of forceps arms 32 secured to the rear end of the housing 30 are provided with arcuately recessed heads 48 which on compression of the arms 32 slide between the lugs 41 and move the ends of a clip 31 inwardly so that the clip is deformed to a U-shape to hold together the edges of a wound, flesh-engaging prongs being provided on the clip 31. Stop bars 50 formed with the collar 40 limit the outward movement of the forceps arms 32. Clips 31 are stacked on a U-shaped rack (not shown) for insertion into the applicator, the rack being subsequently withdrawn. Indicia 75 showing the number of clips which have been discharged from the applicator are marked along the edge of the slot 35. In a modification (Figs. 8 and 10) the clips are stacked with plunger 36 and spring 37 in a slide 90 provided with an enlarged stop bar 92 at the rear end and holding lugs for the leading clip 31 at the forward end. The slide is inserted in the applicator housing 80 from the rear as far as stop bar 92. A threaded screw 93 in the stop bar 92 supports the rear end of spring 37, the head 94 of the screw providing a bearing for a spring 104 secured to the housing 80 to control the rearward movement of the slide 90 as a clip 31 is applied to the wound. Slides 90 vary in size to accommodate clips of different sizes within one applicator 80. The forceps arms 32 are the same as for the embodiment shown in Fig. 1. Alternatively channelshaped forceps arms 111 (Fig. 15) pivoted on pins 115 secured to the housing may be pro. vided, ribs 110 provided along the sides of the housing serving as stops to limit the outward movement of jaws 118 at the forward end of the arms 111. Springs 119 hold each arm 111 in the outermost position.
Patent GB-857484-A (GB)
Title: Improvements in plate cutting and bevelling machines
IPC: B23D19/08
Filed: 1959-02-10
Abstract: 857,484. Shearing. SVETSMEKANO A.B. Feb. 10, 1959 [Feb. 12, 1958], No. 4671/59. Class 33 (4). In a roller-cutter for shearing plates 3, the axis of the cutting roller 1 is located ahead, in the direction-of-feed 8, of the axis 7 of a non- cutting supporting roller 4. The axis 6 of roller 1 is inclined to the plane of the plate to cut a bevelled edge, and both rollers may be driven to feed the plate. If the cutting roller has a toothed rim, roller 4 need not be driven. Roller-sizes are given, and additional supporting rollers 5 may be provided.
Patent GB-775216-A (GB)
Title: Improvements in or relating to monoazo dyestuffs of the benzene-azo-pyrazolone series and their chromium-complex compounds
Filed: 1955-02-17
Abstract: The invention comprises dyestuffs of formula <FORM:0775216/IV(b)/1> where the dotted line is -CH = CH-CH = CH-or -(CH2)4- and their chromium complexes particularly those containing about 1 atom of metal per 2 mols of dyestuff. The dyestuffs are made by diazotizing anthranilic acid and coupling, advantageously in alkaline solution, with appropriate pyrazolones and chroming the dyestuff thus obtained. Chroming may be effected in substance or on the fibre.  The chromed dyestuffs dye wool, silk, leather and artificial nitrogenous fibres in yellow shades.  The metal-free dyestuffs dye wool in yellow shades.  Examples are provided of the preparation of the dyestuffs and their use in dyeing the pyrazolone components used being 1 - naphthyl - and - (51,61,71,81-tetrahydro) - naphthyl - (11) - and - (21) - 3 - methyl - 5 - pyrazolone.
Patent GB-852630-A (GB)
Title: Process for treating steel for preventing surface defects thereof
IPC: C23C22/72
Filed: 1957-02-12
Abstract: 852,630. Making ingots. YAWATA IRON & STEEL CO. Ltd. Feb. 12, 1957 [Feb, 13, 1956], No. 4814/57. Classes 83 (2) and 83 (4). In a method of surface-treating steel ingots to prevent surface defects during hot working, such as rolling, forging, drawing and extruding the metal, is treated with sulphides of iron, manganese, sodium, potassium or aluminium which have the effect of removing concentrated alloy metals such as copper, arsenic or tin in liquid phase on the surface. The steel may be immersed in molten mixtures of the sulphides or may be sprayed with sulphides in the powdered form and subsequently heated. Iron oxide such as mill scale may be added to the mixture to lower the melting-point of the sulphides. The impurities form sulphides or dissolve into the applied sulphide and are carried away from the surface.
Patent GB-931017-A (GB)
Title: Method for the manufacture of semi-conductor devices
Inventor: LANGRIDGE ARTHUR
IPC: H01L21/00
Filed: 1961-02-09
Abstract: 931,017. Semi-conductor devices. WESTINGHOUSE BRAKE & SIGNAL CO. Ltd. Jan. 17, 1962 [Feb. 9, 1961], No. 4819/61. Class 37. At least one surface of a wafer of silicon or other semi-conductor material is provided with a coating of material resistant to etchant, which coating is not present in an area defining the outline of a required portion of the wafer, and the required portion is separated from a remaining portion by exposing the area to etchant. The resist may be wax and may first cover the wafer entirely, the resist then being cut through by a scribe which provides a line cut defining the desired outline. A wafer, wax coated on both sides, may be clamped between two plates each containing three circular apertures, the apertures in one plate being aligned with the apertures in the other plate, and each aperture serving as a guide for the scribe. Three discs are obtained after etching. A suitable etchant is a mixture of HF and HNO 3  in the ratio 1 : 4, together with wetting agent.
Patent GB-964816-A (GB)
Title: Improvements in or relating to filing boxes for correspondence and the like
Inventor: HILL THOMAS ROWLAND
IPC: B65D5/38
Filed: 1962-02-09
Abstract: 964,816. Cabinets. EXPANDEX Ltd. Feb. 6, 1963 [Feb. 9, 1962], No. 5035/62. Heading A4B. [Also in Division B8] A stackable filing drawer consists of a case A and a tray C slidable therein, the bottom side edges of the case being provided with tongues 26 cut from the base (or top) which fit into slits 30 in the top (or base) side edge of the case stacked below to prevent lateral movement between the cases. To prevent obstruction by the tongue 26 and for reinforcement the case is provided with a U-shaped liner. When stacks of boxes are arranged side by side, each stack is attached to its adjacent stack by metal U plates 50.
Patent GB-1087524-A (GB)
Title: Separating acrylonitrile or methacrylonitrile from mixtures containing the same
Inventor: WEITZ HANS-MARTIN
IPC: C07C/
Filed: 1965-02-05
Abstract: Acrylonitrile and methacrylonitrile are separated from mixtures, obtained by the ammonia oxidation of propylene or isobutylene, by extractive countercurrent methods wherein the extractive solvent is a 5- or 6-ring membered lactam, N-substituted lactam or lactone, an acyclic or cyclic sulphone or sulphoxide, an N-alkylcarboxylic amide, an N,N-dialkylcarboxylic acmide or propylene carbonate.  The two phase flowing in counter current comprise the reaction mixture and the solvent and may be liquid/liquid phases or gas/liquid phases respectively. The process is illustrated by reference to flow drawings (not shown) representing a gas/liquid extraction and extractive distillation. A liquid/liquid extraction using an auxiliary solvent is also described.  Examples relate to the use of N-methylpyrrolidone, propylene carbonate, 3 - methyltetramethylene sulphone, butyrolactone, dimethyl sulphoxide, N - q -hydroxyethyl pyrrolidone, and dimethyl-formamide as extractive solvents.
Patent GB-1036522-A (GB)
Title: Portable containers
IPC: B65D1/40
Filed: 1963-02-07
Abstract: 1,036,522. Plastics containers. MAUSER KOMM. GES. Feb. 7, 1963 [June 8, 1962] Sept. 13, 1962], No. 5058/63. Heading B8D. A stackable plastics container 1 is formed with an inward corrugation 22 in its side wall, Fig. 1 (not shown), immediately below a sheet metal closure 4 applied over an outwardly flared rim of the side wall which is subsequently forced downwards when a flange 5, 6 of the closure is seamed to the rim. The corrugation is designed to accommodate part of the rim of a similar adjacent container if the container becomes displaced, thereby preventing the adjacent rim from wearing through the container side wall below the seam.
Patent GB-1034865-A (GB)
Title: Improvements in bushings
IPC: F16B19/10
Filed: 1963-02-07
Abstract: 1,034,865. Grommets. ILLINOIS TOOL WORKS Inc. Feb. 7, 1963 [April 13, 1962], No. 5061/63. Addition to 1,002,516. Heading F2H. [Also in Division E2] A bushing comprises a shank portion 24 for extending through an aperture 60 in a first workpiece 20 and having a central bore 42 for receiving a shank 16 of a second workpiece, and a head portion 26 integral with a trailing end of the shank portion for overlying one side of the first workpiece, the shank portion including a first section 30 adjacent the head portion and having a predetermined outside diameter generally axially extending radially deformable ribs 32 on and projecting laterally of the first section for enabling the bushing to fit slightly within a said first workpiece aperture of any of various diameters greater than the predetermined diameter, and means 34 on the shank portion providing relatively rigid shoulder means 36 extending laterally outwardly of the first shank section at an entering end of the ribs for overlying the first workpiece surface opposite from the head portion when the bushing is applied to the first workpiece, the shoulder means being spaced a predetermined distance from the head portion and the parts of the ribs in the aperture in use being deformed to provide shoulder means engageable behind the first workpiece when the first workpiece has a thickness less than the predetermined distance. When the first workpiece has a thickness equal to said predetermined distance the shoulder means 36 engages the opposite surface of the first workpiece to that engaged by the head portion to resist withdrawal of the bushing from the aperture. To allow the bushing to collapse radially during assembly slots are formed in opposite sides and these extend through the head portion 26. In alignment with the slots the entering end portion 38 of the bushing is formed with flat surfaces so that the opposite parts of the shank portion which are separated by the slots are connected by relatively thin wall sections. A projection 44 is formed in the bore to engage in a recess 46 in the shank of the second workpiece.
Patent GB-559944-A (GB)
Title: Method of treating ores and treatment agent therefor
Filed: 1942-04-16
Abstract: 559,944. Precipitating metals from solutions. TRIGGS, W. W. (Courtis, T. M., and Courtis, W. F.). April 16, 1942, No. 5067. Drawings to Specification. [Class 82 (i)] [Also in Group III] Ores, scrap &c. having a precious-metal content which includes gold, are treated for recovery thereof, with a solution containing dissolved iodine to form compounds of the gold &c. with iodine, the solution is treated with mercury to form an amalgam of part of the precious-metal leaving some as a suspended unamalgamated precipitate, whereupon the precious metal of the amalgam and the precipitate are recovered. The solution may be of iodine and a metal nitrate, e.g. potassium nitrate; hydroiodic acid is preferably present also to attack refractory compounds of gold, &c. The solution may be made by mixing water, potassium iodide, iodine, and nitric acid; and the resulting solution after treating the ore may be filtered, the residue washed with potassium iodide solution, the washings added to the filtrate, to which the mercury is added to form gold, silver, and base metal amalgams.
Patent GB-720749-A (GB)
Title: Improvements in or relating to conveyor devices
IPC: H01J9/24
Filed: 1953-02-24
Abstract: 720,749. Conveyers; shoots and hoppers. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. Feb. 24, 1953 [April 3, 1952], No. 5110/53. Class 78 (1). [Also in Group II] A conveyer for orientating the axes of and feeding open flared-neck lamp bulbs 12, Fig. 1, to a gravity track 21 on which they stand upright from a sheet metal hopper 11, comprises a pair of endless sprocket chains 15, 16, Fig. 4, part of the upper runs of which underly a slot 45 in an inclined side wall 46 of the hopper and rests 19, 54 carried by the chains for engaging bulbs in the hopper, the rests on one chain being spaced apart from those of the other a distance greater than the bulb neck diameter but less than the maximum bulb diameter so that they serve to carry the bulbs aligned in the direction of travel to the top of the chain. Any bulbs lying crosswise of the chains, e.g. as shown in Fig. 14, are removed from contact with the rests by means of parallel ramps 57, 58 which serve to re-orientate the misaligned bulbs or to throw them back into the hopper. Swingable gates 59, 61 may be disposed above and transverse of the conveyer to sweep therefrom bulbs which are lying other than in a prone position. The gravity track 21 comprises feed rails 71, 72, 73, Fig. 7, spaced to allow the bulb necks to drop therebetween and to catch the bulbs adjacent their portions of maximum diameter and are positioned to receive bulbs discharged from the upper end of the conveyer and to deliver them, closed ends up, to a position where they may be picked up and transported to a sealing machine. A gap between the rails 71, 72 diverts bulbs once the space between the lower portions is filled into a shoot 74, whereby they are returned to the hopper. Some of the lugs 54 are extended to a greater height than the others 19 so as to agitate the bulbs in the hopper. The chains 15, 16 are supported by means of a channel member 33 closing the slot 45 in the hopper wall together with rails 47, 48, 49 secured to the member 33 and the flanges 34, 35 of the channel member depending between and being bolted to strengthening flanges 41, 42 provided on frame members 43, 44 attached to the sides of the slot in the hopper wall.
Patent GB-397186-A (GB)
Title: Apparatus for changing treasury and like notes
IPC: B41K3/00
Filed: 1932-02-20
Abstract: 397,186. Money-delivering apparatus; tills. BOTTING, A., 20, Church Street, Seaford, Sussex. Feb. 20, 1932, No. 5116. [Class 116.] In a device for delivering coins in exchange for treasury or like notes, a finger D is in turn associated with one of a number of cylindrical note-containers mounted on a note-table E and, on depression co-operates with a rolled or folded note to actuate a locking-pawl A thus releasing the note-table E for positive rotation by a pawl C attached to the changelever B, when the latter is moved in an anticlockwise direction to deposit a change container in the slot H. The lever B carrying the pawl C returns to its normal position against a stop Fl under the action of a spring S. A lid on the note container co-operates with an additional pawl (not shown) so that the table E is locked against rotation when the lid is raised.
Patent GB-556337-A (GB)
Title: Improvements in or relating to the method of working internal combustion engines
IPC: F02B41/04
Filed: 1942-04-17
Abstract: 556,337. Cycles of working. MORTON. R. J. April 17, 1942, No. 5166. [Class 7 (ii)] In two and four stroke cycle engines part of the charge is rejected during the compression stroke and the burnt gases are released early during the working stroke so that the effective compression ratio and the effective expansion ratio are lowered as compared with normal ratios when the inlet valve closes and the exhaust valve opens on a dead centre. The ratio of the effective compression ratio to the effective expansion ratio is of the order of 3 to 4. In the diagram, Fig. 1, of a four-stroke engine the exhaust valve opens at the point 8 on the crankpin circle and closes beyond the upper dead centre. The inlet valve closes at the point 6. This gives an effective expansion ratio of 10 to 1 and an effective compression ratio of 7.5 to 1. A two-stroke engine is described in which the two corresponding ratios are 8 to 1 and 6 to 1. The twostroke engine may have opposed pistons in each cylinder.