baber/WOPTO huggingface dataset:
Patent GB-210788-A (GB)
Title: Improvements in or relating to cutting devices
IPC: B67B7/92
Filed: 1924-01-31
Abstract: 210,788. Molina, A., (Assignees of Lardy, S. A.). Feb. 1, 1923, [Convention date]. Cutting glass.-An appliance for cutting the ends of glass tubes &c. comprises a circular cage a carrying rollers d for positioning the tube and a cutting disc d<1> mounted on a movable radial slide f guided by a screw g and slot f<1>. Instead of the rollers d a V-notch in the cage may be used for positioning the tube and a diamond substituted for the cutter d'. In a modification three movable cutters may be used.
Patent GB-1511124-A (GB)
Title: Cycloaliphatic amines
IPC: C07C211/36
Filed: 1976-01-23
Abstract: 1511124 Cycloaliphatic amines BAYER AG 23 Jan 1976 [24 Jan 1975] 02663/76 Heading C2C [Also in Division B1] Cycloaliphatic amines are prepared by hydrogenating an aromatic amine at elevated temperature and pressure in the presence of a supported ruthenium catalyst wherein the catalyst support comprises hydroxides and/or hydrated oxides of chromium and manganese and/or their dehydration products. Preferred aromatic amine starting materials have the general Formulµ (I) to (V) wherein R<SP>1</SP>, R<SP>2</SP>, R<SP>3</SP>, R<SP>8</SP>, R<SP>9</SP> and R<SP>10</SP>, are each hydrogen or alkyl, R<SP>4</SP> and R<SP>5</SP> are each optionally substituted alkyl, cycloalkyl, aralkyl or aryl, R<SP>6</SP> and R<SP>7</SP> are each alkyl, A is optionally substituted alkylene, and m, n and p are each 0 or 1. The invention further comprises compounds of the formulµ wherein R<SP>1</SP> and R<SP>2</SP> are alkyl or hydrogen, and the compounds 4,41,41-triamino-tricyclohexylmethane, and 4,4<SP>1 </SP>- diamino - 3,3<SP>1</SP>,5,5<SP>1</SP> - tetraethyl-dicyclohexylmethane.
Patent GB-1395441-A (GB)
Title: Image intensifiers
IPC: H01J31/50
Filed: 1973-01-18
Abstract: 1395441 Image intensifier tubes; electron multipliers MULLARD Ltd 18 Jan 1973 2678/73 Addition to 1175599 Heading HID An image intensifier tube comprises in combination a channel plate as claimed in any one of claims 1 to 4 of the parent Specification, a photo-cathode spaced from the input face of the plate, and a display screen, wherein the channel plate input face comprising the conductive membranes is substantially non-reflective of radiation of wavelengths to which the photocathode is sensitive. The membrane may be continuous, superposed on the input electrode as in Fig. 2, or insulated from the input electrode to be at a different potential as in Fig. 3 (not shown). Alternatively membranes may be extensions of the input electrode to form together a continuous layer, Fig. 4 (not shown). Opaqueness of membranes to visible and U.V. radi tion inhibits feedback from a display screen which then requires no metal backing. Membranes D may be separate elements with their edges in electrical contact with input electrode in which ease the latter are also non- reflective. A continuous layer may include a self-supporting layer or film of A1 which is crystalline (non-reflective) and a second layer of amorphous A1 (non-reflective or "black"). In fabrication, a lacquer film is produced by flotation on water, placed over an input face in Figs. 2, 3 or on a glass substrate for the Fig. 4 device, followed by evaporation of the A1. For a glass matrix reduction of a metal (e.g. Pb) compound in the matrix for the requisite conductivity, may be repeated after final baking of the second layer in air or oxygen or can be postponed until after baking. The first A1 layer should be 200  thick. The second A1 layer is also evaporated but in an inert gas (e.g. nitrogen at 0À05 torr), the lacquer then being burned off. The amorphous layer thickness may be assessed by reflection of a glowing filament and is preferably 300 to 800  thick. Channel plate specifications are given with an A1 film Df 500 to 1000  thick. Image intensifier tubes of "proximity" and "inverter" type are exemplified.
Patent GB-828854-A (GB)
Title: Improvements in electric plug and socket contact devices
IPC: H01R13/52
Filed: 1957-01-25
Abstract: 828,854. Two-part couplings. ALLMANNA SVENSKA ELEKTRISKA A.B. Jan. 25, 1957 [Jan. 26, 1956], No. 2719/57. Class 38 (1). In a plug-and-socket coupling for a train, the socket contact 3 is vulcanized to a resilient member 2 forming one wall of a hermeticallysealed casing 1 in which the terminal end of the socket is located. The socket is formed in two halves having resilient arms 4, 5 which are pivoted together at 9. The resilience of member 2 urges the socket halves apart to an extent limited by a stop 10 and they may be clamped on to a plug pin 14 by a cam member 6 adapted to force apart the inner ends of the socket halves when rotated by a lever 7.
Patent GB-215070-A (GB)
Title: Improvements in or relating to devices for measuring and indicating the tangential pressure or crank power of reciprocating engines
IPC: G01L3/14
Filed: 1923-01-30
Abstract: 215,070. Fischmann, D. Jan. 30, 1923. No Patent granted (Sealing fee not paid). Steam-engine and like indicators.-Relates to measuring devices for crank effort of the type described in Specification 158,830. The shaft h is driven synchronously with the crank of the engine being tested, and a sleeve h' upon it drives a pair of epicyclic gears p, p<1> meshing with a fixed pinion o and a loosely mounted gear q respectively. An arm s on a shaft m carries a second pair of similar epicyclic gears t<1>, t, the former meshing with the gear q and the latter with a pinion u having the same number of teeth as the pinion o. The shaft m is driven by the shaft h through a linkage which is influenced by the pressure in the cylinder being tested, so that only a relative, movement is imparted. to the pinion u. This pinion is mounted on a spindle v carrying a mass w, and its movement is resisted by a spring g., The amount of displacement, which indicates crank effort is shown by a finger moving over a suitable scale. The linkage driving the shaft m comprises two arms f secured to the shaft h and connected to arms d<1> on a boss d by pins e. The boss is positioned by an arm l which is pinned at n<1> to a frame n. This frame is rigid with pistons k to the cylinders a of which pressure fluid from the sides of the cylinder under test is admitted. The frame f has a toothed arm b meshing with a gear i on the shaft m.
Patent GB-1516072-A (GB)
Title: Projectiles having a pressure gas accumulator
IPC: F42B15/01
Filed: 1977-01-24
Abstract: 1516072 Projectiles MESSERSCHMITT. BOLKOW-BLOHM GmbH 24 Jan 1977 [12 Feb 1976] 02809/77 Heading F3A A projectile 11, for firing from a barrel 12 by means of a propulsive charge 3, has at least one valve 2 through which propulsive gas passes and is stored by an accumulator 1 for use, as required, in controlling the roll, pitch and jaw of the projectile. The stored gas is discharged through control nozzles 10 or is used to actuate pistons connected to movable control surfaces (not shown).
Patent GB-540941-A (GB)
Title: Improvements in or relating to electric oscillation generating circuits
IPC: H03B5/10
Filed: 1940-02-15
Abstract: 540,941. Valve generating circuits. VANDERLYN, P. B., and WHITE, E. L. C. Feb. 15, 1940, No. 2874. [Class 40 (v)] A generator comprises a pair of valves 1, 2 with an impedance R1 common to their cathode circuits, having a high value compared with the reciprocal of the valve mutual conductance. The frequency determining circuit L2, C2 in the anode circuit of one valve and is coupled to the grid of the other valve. Instead of a parallel tuned circuit a delay network may constitute the frequency determining circuit. The amplitude may be controlled by varying the feed current by varying the bias either by varying the common cathode resistance or by a potentiometer. As shown automatic bias control is obtained by rectifying part of the output by diode G to which a variable delay voltage is applied. The common impedance may be a resistance, or a choke, or a complex network comprising an inductance in series with a condenser the whole being shunted by an inductance in series with a parallel combination of a resistance and a further condenser Fig. 2 (not shown). Alternatively the common impedance may be a pentode valve the grid bias of which may be automatically controlled. Reference has been directed by the Comptroller to Specification 541,149.
Patent GB-764356-A (GB)
Title: Improvements in roller grinding mill
IPC: B02C4/36
Filed: 1955-01-31
Abstract: 764,356. Roller mills. LEHMANN CO., Inc., J. M. Jan. 31, 1955 [March 4, 1954], No. 2876/55. Class 59 [Also in Group XXXIV] A roller grinding mill comprises three rollers 15. 16, 17 arranged in train, the end bearings 20 . . . 25 of the rollers being slidably mounted in end frames 26, 27, and means are provided to lock the bearings of the intermediate roller electively against movement in the frame. The locking means comprise rotatably adjustable spindles 36 having cam portions for engagement with slots 42 in the flanges 41 of the bearings 22, 23. Alternatively, a single locking bar 43, Fig. 8 is disposed parallel with the roller axis and has slotted portions 48 which may be caused to exert a camming action on the walls of recesses 45 in the bearings 22, 23. Adjacent bearings are separated by compression springs 32 inside of which extend screws 35 which limit the amount of separation between the rollers. Position indicators are mounted on the rollers. The latter may have cooling fluid supplied thereto.
Patent GB-1209523-A (GB)
Title: Improvements in or relating to nonwoven fabrics
IPC: D04H13/00
Filed: 1968-01-18
Abstract: 1,209,523. Reinforced fabric laminate. HERCULES Inc. 18 Jan., 1968 [23 Jan., 1967], No. 2889/68. Heading B5N. An air-pervious reinforced non-woven fabric is made by heating a non-woven web in close contact with a thermoplastic net material comprising regularly spaced intersections connected by thermoplastic strands, at a temperature sufficiently high to melt said thermoplastic net material and cause the strands to draw back towards the intersections making regularly spaced spots of melted thermoplastic material which bond the fibres of the non- woven fabric when the melt cools. The non- woven fabric may comprise fibres or continuous filaments, e.g. fibres of polypropylene, cotton, wool, regenerated cellulose, cellulose acetate, polycaprolactam, acrylates, vinyls, polyesters or viscose rayon, and may be a mixture of wool and polyamide fibres. The thermoplastic net material may be of polyethylene, polypropylene, which may be stereoregular, polyesters, e.g. polyethylene terephthalate, polyamides, or copolymers of ethylene with propylene, vinyl acetate or methyl acrylate. The net material may be woven, or a perforated sheet, or two perpendicular sets of parallel strands bonded at their cross-overs, or a plurality of uniformly spaced solid thick masses joined by oriented strands or threads, e.g. as shown in Fig. 9. The fabric may comprise a non-woven web with the net material on one or both surfaces, or two non-woven webs with the net material between them, or layers of the non-woven web and the net material arranged alternately. The layers may be united by heating them in a platen press, or passing them between heated nip rollers, or passing them taut over a large heated roller possibly pressing them against such roller by a belt. Alternatively the layers are heated by hot air or steam whilst they are held between metal screens, or passed over a perforated or screen drum, e.g. using a screen belt. The reinforced fabrics may be used as filter cloths, shades for crops, backing fabrics for tufted structures or disposable fabrics, e.g. surgical dressings, bed sheets, pillow coverings or surgical gowns.
Patent GB-305362-A (GB)
Title: Improvements in railroad ballast spreaders
IPC: E01B27/02
Filed: 1928-01-30
Abstract: 305,362. Dehn, F. B., (Jordan Co., O. F.). Jan. 30, 1928. Surface - levelling machines. - Railroad ballast spreaders have side spreader wings 8, Fig. 1, supported by roller-carriages 37, 45 running on vertical rails 17, Fig. 3, carried by posts 9, 10 upstanding from the truck frame. The rollers engage at least three sides of the rail to prevent twisting movements. The posts on each side of the truck are crossconnected by members 12 and are further supported by inclined braces 19, 20 connected to the truck frame. A pressure cylinder 52, the piston 51 of which is connected to the rollercarriage, serves bodily to raise and lower the spreader wings, a pin 55 engaging one of a number of holes 15<a> to hold the wings in adjusted position. The wing is pivoted at 42 to a plate 39 itself hinged at 41 to the lower roller-carriage 37, and a telescopic power-operated brace 56, 57 connects the wing to a plate 48 hinged to the upper roller-carriage 45. The roller-carriages are connected by a tubular member 22<a>. The telescopic brace comprises a sleeve 57 connected to the pneumatic cylinder 63 and a tube 56 connected to the piston within the cylinder. A pneumatic cylinder 78 on the. sleeve contains a piston connected to a. spring-pressed bolt engaging one of a number of holes in the tube 56. Pressure admitted to the lower end o' the cylinder 63 causes the wing to be raised about the pivot 42, and the removal of pressure from the cylinder 78 enables the bolt automatically to lock the brace in adjusted position. The pressure reservoir 73 is carried on the truck frame below the operating cab 74 within which the control valves are situated. The truck also carries a front plough 6.
Patent GB-673204-A (GB)
Title: Improvements in or relating to the production of metallic powders
Inventor: MARSHALL PETER ROBERT
IPC: C25C5/02
Filed: 1950-02-04
Abstract: 673,204. Electrolytic production of stainless steel powder. BIRMINGHAM SMALL ARMS CO., Ltd. Jan. 30, 1951 [Feb. 4, 1950; Oct. 11, 1950], Nos. 2939/50 and 24785/50. Class 41. A method of producing stainless steel powder comprises heat-treating stainless steel in massive form in order to precipitate carbides on the grain boundaries of the steel, immersing the steel so treated in an electrolytic bath and utilizing the steel as an electrode to induce intergranular attack therein. The method may comprise heating stainless steel in massive form to a temperature above 1000‹ C., allowing the steel to cool to about room temperature, heating it again to a temperature between 500‹ and 800‹ C., substantially maintaining the temperature for a period from one hour to forty hours to precipitate carbides on the grain boundaries, pickling the steel so treated and then immersing it in an electrolytic bath so that it is alternately anode and cathode. Alternatively a plurality of such stainless steel electrodes may be grouped in pairs, each electrode of each pair being alternately connected as anode to, and disconnected from a source of electrical energy, the cathode being a hollow lead cathode through which is circulated cold water. Suitable electrolytes include sulphuric acid with crystals of copper sulphate, mercuric sulphate or potassium dichromate, hydrofluoric acid with sulphuric acid or nitric acid, hydrochloric acid with crystals of copper chloride, and sulphuric acid or orthophosphoric acid with hydrogen peroxide. The hydrogen peroxide or copper sulphate crystals may be added to any of the electrolytes mentioned above, where they are not already included, and ethyl alcohol may be added to solutions of sulphuric acid and copper sulphate or hydrofluoric acid.
Patent GB-529029-A (GB)
Title: Improvements relating to loom shuttles
IPC: D03J5/24
Filed: 1939-01-28
Abstract: 529,029. Loom shuttles. FENDER, J. E. Jan. 28, 1939, No. 3010. [Class 142 (iii)] The longitudinal tunnel and the lateral eye tunnel D are connected by two slanting threading slits A, C which extend towards the top of the shuttle, the V-shaped portion E between the slits being lower than the adjacent surfaces of the shuttle.
Patent GB-365338-A (GB)
Title: Improvements in or relating to the coating of leather and products obtainable thereby
IPC: C14C11/00
Filed: 1931-01-30
Abstract: 365,338. Costing leather. IMPERIAL CHEMICAL INDUSTRIES, Ltd., Millbank, London. Jan. 30, 1931, No. 3034. Convention date, Jan. 31, 1930. [Class 140.] Leather is coated with a cellulose derivative composition of low film-strength containing a wax; for example, cellulose nitrate or acetate, wax, a plasticizer, a solvent, and a diluent. Leather coated with this composition may be " boarded " to produce a grained finish. The amount of plasticizer used should be only the small amount necessary for the proper grinding and incorporation of the pigments. If large amounts of plasticizer are used, large amounts of wax and pigment must be used. By grinding the pigment in the wax, the plasticizer may be omitted. The ingredients may be ground in alcohol. The plasticizer may be dibutyl phthalate, castor oil, tricresyl phosphate, dibutyl tartrate, or any known plasticizer. Pigments such as zinc oxide, titanium oxide, chrome yellow or orange, and iron oxide may be used, or dyes such as nigrosine. A high ratio of inert material to binder is of advantage. The wax may be of vegetable, animal, mineral, or synthetic origin ; preferably a wax of high melting point such as carnauba, beeswax, candelilla, or montan wax, is used. While not generally desirable, a suitable natural or synthetic resin, e.g. shellac, may be added. Any solvent may be used, preferably with a quantity of diluent or thinner, such as alcohol. The composition may be applied by any method, preferably by spraying, the leather being stretched on a frame. When the leather is boarded, the film breaks at all points where stress is applied, and microscopic cracks are produced. Examples of compositions are given.
Patent GB-581596-A (GB)
Title: Improvements relating to liquid level gauges
IPC: G01F23/26
Filed: 1945-02-07
Abstract: 581,596. Condensers. LEVKOVITSCH, P. GOUDIME-, and SMITH, S. J. Feb. 7, 1945, Nos. 3072/45 and 239/46. [Class 37] [Also in Group XXXVIII] A condenser used to indicate changes of liquid level, (see Group XXXVIII) has two spaced flexible electrodes insulated from one another so that it can be folded up or bent for use in a fuel tank of the flexible bag type. Fig. 2 shows a condenser having a central flexible conductor 15 having thimble shaped spacing members 16 of insulating material threaded on it and an outer conductor 17 consisting of a metal braiding. Fig. 5 shows a condenser in the form of a flexible mat having flexible conductors 25 arranged as a warp and woven together by a weft of insulating material 26, alternate conductors being connected to form two groups constituting the two electrodes. Another form, Fig. 7 (not shown), comprises flexible conductors insulated from one another by spacing members extending along the length of the conductors and formed with grooves to receive their ends. Specification 560,872 is referred to.
Patent GB-1245971-A (GB)
Title: Heat engine plant
Inventor: COAST GEOFFREY
IPC: F02C1/10
Filed: 1968-01-19
Abstract: 1,245,971. Turbine power plant. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. Jan.13, 1969 [Jan.19, 1968], No.3127/68. Headings F1G and F1Q. [Also in Division G6] In a gas turbine plant comprising a first closed circuit consisting of a compressor 18, regenerative heat exchanger 15, nuclear reactor heat source 11, turbine 12 and a further heat exchanger 17 for transferring residual heat to a second closed circuit, the components of the plant are arranged and selected such that of the energy produced by the heat source at least 20% is converted into mechanical energy in the turbine 12 and at least 16% is transferred by the heat exchanger 17 to the second closed circuit. The working fluid of the first circuit may be helium or carbon dioxide and that of the second circuit a "Freon" (Registered Trade Mark). The heat exchanger 17 acts as a vapour generator for the latter, the vapour passing to a turbine 22 and thence to a heat sink 23 and compressor 24. The thermal efficiencies of turbine 12 and heat exchanger 17 are each in excess of 20%.
Patent GB-229083-A (GB)
Title: Improvements in vices
IPC: B25B1/24
Filed: 1924-02-06
Abstract: 229,083. M³ller, J. Feb. 6, 1924. Vices. - Both jaws of a vice are provided with removable jaw-pieces 1 having curved fillets 4 and grooves 5<1> engaging corresponding grooves 4<1> and fillets 5 in the jaw faces, the fillets and grooves having one or both of their sides inclined in cross section. The curve of the jawpieces may be convex, as shown in Fig. 2, or concave with respect to the flat gripping surfaces. The fillets and grooves have one side 15, Fig. 1, inclined, or in a modification both faces 15, 16, Fig. 4, are inclined. Both jaw-pieces may be fixed in position by pins 3 engaging partly in the jaw-pieces and partly in the jaws, or one of the iaw-pieces may be so fixed, the other being capable, of a slight lateral movement to permit of gripping work of irregular shape. This movement is controlled by a blade spring 6, Fig. 4, engaging the jaw and integral with a plug 7 secured in a cavity 9 in the jaw.
Patent GB-553398-A (GB)
Title: Improvements in the manufacture of tin-plated lead collapsible tubes
IPC: B21C23/22
Filed: 1942-03-11
Abstract: 553,398. Collapsable tubes. BETTS & CO. Ltd., and DUNN, E.. STATHFR-. March 11. 1942, No. 3200. [Class 66] [Also in Group XXII] A collapsable tube is made by inserting a small mass of tin or other non-staining metal in a hole in a tin-coated lead disc and then extruding the disc to form a tin-coated lead collapsable tube with a nozzle of non-staining metal. The insert may be welded to the disc before extruding, for instance, by casting it into the hole in the disc.
Patent GB-711306-A (GB)
Title: Improvements relating to pottery manufacture
IPC: B28B1/02
Filed: 1952-02-07
Abstract: 711,306. Potter's jolleys. CLOUGH, Ltd., A., and MOUNTFORD, T. E. Feb. 6, 1953 [Feb. 7, 1952], No. 3215/52. Class 87 (1) In a potter's jolley, a scraper tool 28 is mounted on the usual shaping arm I and is moved into operative position by a pivoted hand lever 20. The tool 28 is carried by a lever 25 which is released for downward movement by a spring 31 when a control arm 17 is rocked by a Bowden cable 16 against a spring 15 to bring a projection 23 on the arm 17 under a recess 24 in the lever 25.
Patent GB-524483-A (GB)
Title: Improvements in or relating to hydraulic couplings of the kinetic type
IPC: F16D33/20
Filed: 1939-01-31
Abstract: 524,483. Hydraulic clutches. CHRYSLER CORPORATION. Jan. 31, 1939, No. 3290. Convention date, June 16, 1938. [Class 69 (ii)] A hydraulic coupling of the kinetic type having normally smooth circuit passages is provided at different radial distances with pockets or broken surfaces tending to impede the flow of the liquid. A driving shaft 5 carries a hub member 7 to which is welded the impeller casing 8. This hub member 7 has a hollow boss 9 which forms an inner pocket 60 connected through a passage 61 with the inner part of the runner. It also provides a support for a ball bearing 11 in which. the end of the driving shaft 13 is mounted. The impeller outer casing 8 is smooth and concentric with the inner shell 22 except toward the rim where a pocket 65 is produced and the flattened portion 62 of the casing is used to support the ring of a starter pinion 63. The impeller casing is continued over the runner and provided with a shroud member 51. This member is secured to the impeller by a ring 54 having an extending rib 55, the whole being welded together. The inner portion of this shroud supports a flange 52 against which a spring 53 abuts which is adapted to hold the driving shaft in position, and it also carries a bellows-like stuffing box member 49. The runner member is formed of smooth concentric surface 26, 36 with the usual radial vanes, and it is reinforced at its inner end by a bent plate member 27 which is welded to it. For the purpose of filling the casing, pipes or passages 57 are provided between the inner space and the space inside the shroud which space 56 constitutes a reservoir. In order that the parts may be balanced, the runner is also provided with tubes 66 into which are screwed weights 67 as necessary, access thereof being provided through the opening 69 which has a screwed cap 68.