baber/WOPTO huggingface dataset:
Patent GB-543108-A (GB)
Title: Improvements in or relating to worm or screw type conveyors
IPC: B65G65/46
Filed: 1940-10-31
Abstract: 543,108. Worm or screw conveyers. PORTEUS, W. Oct. 31, 1940, No. 15911. [Class 78 (i)] The discharge end of the tube or trough of a worm or screw type conveyer 12 is fitted with a rotary member which may comprise a further short coaxial screw conveyer 16 running at higher speed to ensure continuous and uniform discharge of granular or powdered material. The material is fed from hopper 1 past agitators 2, 6 to the conveyer 12 which is driven by ratchet gear 15 of adjustable ratio from a shaft 3 geared to the driving shaft 5. The small conveyer 16 has a larger number of turns than the main conveyer and is mounted on the tubular shaft 17 which is driven at high speed by belt 19.
Patent GB-1099874-A (GB)
Title: Semi-conductor devices for high currents
IPC: H01L23/051
Filed: 1965-04-14
Abstract: 1,099,874. Mounting semi-conductor devices' ALLM€NNA SVENSKA ELEKTRISKA A.B. April 14, 1965 [April 20, 19641, No. 15970/65. Heading H1K. A semi-conductor system comprises a hermetically sealed box comprising bottom, lid and insulating rings therebetween, the bottom and the lid being in contact with a semiconductor device, e.g. transistor, thyristor or diode, a cooling system in contact with the box and wherein the insulating rings have metal flanges attached thereto and joined to each other outside the rings. A thyristor incorporates a PNP silicon disc 1 having an Al layer soldered on the under side thereof and supported on a plate 2 of Mo, and overlayed with an Au-Sb layer 3. The system is hermetically sealed in a box formed by lid 5, bottom 4, rings 6 and 7 and flanges 8 and 9. The lid, bottom and flanges may be made of Cu, Mo, W, Fe/Ni or Fe/Co/Ni whilst the rings may be of porcelain or ceramic, each of the two parts of the box 5, 7 and 9, and 4, 6 and 8 being joined up by silver soldering whilst the flanges may be joined by cold-welding, soldering or high-frequency welding according to the proximity of the semi-conductor system. Cooling bodies 13 and 14, e.g. of Cu or Al are joined to the lid and the bottom by soldering or pressure contacts. Parts of a clamping device, items 19 to 27, for making the pressure contact are shown in the Figure (also Fig. 2, not shown). Electrical connections to the device are made through studs 28 and 29 whilst the gate electrode is connected by conductor 12, flanges 8 and 9 and contact 10.
Patent GB-929812-A (GB)
Title: Improvements relating to article feeding means
IPC: B65G47/14
Filed: 1961-05-03
Abstract: 929,812. Feeding buttons. ROCHESTER BUTTON CO. May 3, 1961 [Sept. 28, 1960], No. 16102/61. Class 78 (1). Buttons are thrown into inclined hopper 40 and are carried up and discharged thereof through exit 75 (and down shoot 74) by rotating disc 27 formed with pockets 30. Each pocket 30 has a pin 35 adapted to engage the hollow of a button so that buttons in the hollow-downwards position are carried upwards to the exit whilst buttons otherwise orientated fall back into the hopper. The disc is formed with agitators 25 and 34 to agitate the mass of buttons. Member 55 dislodges any button which rides on top of another. The exit 75 is controlled by gate 80 pivoted on shaft 77, the gate 80 being periodically displaced under the influence of roller 88 engaging the cam surface 87 formed beneath the disc. Thus, in Fig. 3, when roller 88 is displaced downwards by cam 87 as disc 27 rotates, gate 80 is displaced upwards to free exit 75 by the interaction of levers 92 and 95. Level limiting device 98, Fig. 5.-The shaft 77 which carries the gate 80 and is caused to rock by cam surface 87 carries rigidly finger 98 which projects into the shoot 74 into which the buttons from hopper 40 are directed. Normally the buttons travel down shoot 74, and finger 98 rocks into shoot 74 without affecting the movement of shaft 77. Should, however, there be so many buttons in shoot 74 that the finger 98 engages the topmost button then the rocking movement of shaft 77 is limited thereby, and gate 80 is held in the closed position till the level of buttons in shoot 74 falls.
Patent GB-1212121-A (GB)
Title: Pigmented paints
Inventor: MECKBACH HEINRICH
IPC: C09D127/06
Filed: 1968-04-04
Abstract: 1,212,121. Aqueous emulsion polymer paint. FARBENFABRIKEN BAYER A.G. 4 April, 1968 [5 April, 1967], No. 16168/68. Heading C3P. A pigmented paint with a continuous aqueous phase has as binder an aqueous emulsion of a copolymer containing, by wt., 9-20% ethylene, 2-12% of a semi-ester of an α,#-unsaturated dicarboxylic acid, or water-soluble salt thereof, and 68-89% of a mixture of vinyl chloride and vinyl acetate or propionate containing 15- 45% of the ester and 85-55% vinyl chloride. The semi-ester is formed from a. C 1 -C 8  alcohol and is preferably used in the form of its sodium, potassium or ammonium salt. The pigment is lithopone, zinc sulphide, titanium dioxide, iron oxide, antimony oxide, chromium oxide, cobalt/nickel/manganese mixed oxides, lead or strontium chromate, red lead or a phthalocyanine and may be mixed with fillers. In an example are used rutile, talc, heavy spar, dolomite, calcium carbonate, potassium phosphate, ammonia, tributyl phosphate, methyl cellulose, ammonium alginate and a copolymer obtained by the process of Specification 1,139,789.
Patent GB-889446-A (GB)
Title: Improvements in or relating to unified flexible non-woven fibrous sheeting suitable for use in adhesive sheets
IPC: C09J7/21
Filed: 1958-05-20
Abstract: The Specification discloses adhesive compositions suitable for forming tacky, pressuresensitive adhesive tape or sheet (see Group VIII).  Compositions (all parts by weight):-  A. Milled pale crepe rubber (100), polybetapinene resin (75), petroleum oil (5) and polymerized trimethyldihydroquinoline (2).  B. Milled smoked sheet rubber (100), dehydrogenated rosin (75), zinc oxide (50), lanolin (10) and sym. di beta naphthyl-para phenylenediamine (2).  C. Butadiene-styrene 70:30 copolymer (50), smoked sheet (50), ester of hydrogenated rosin (50), petroleum oil (20) and polymerized trimethyldihydroquinoline (2).  D. Polyvinyl ethyl ether resin (100), hydrogenated rosin (5), polyethylene glycol ricinoleate (1,5) and phenyl alpha naphthylamine (0,35).  E. Polyisobutylene (solid, high polymer (100), viscous polymer(70)) and toluene (520).  Specification 689,667 is referred to.
Patent GB-1202856-A (GB)
Title: Three-layer plain bearing
Inventor: KOHLMEYER JORG
IPC: F16C33/06
Filed: 1969-03-27
Abstract: 1,202,856. Bearings. BRAUNSCHWEIGER HUTTENWERK G.m.b.H. 27 March, 1969, No. 16232/69. Heading F2A. A bearing comprises a bearing layer of a tin containing alloy, an intermediate layer of an alloy containing copper and from 2 to 10% exclusive of nickel, manganese and/or copper and a support layer of steel.
Patent GB-1146443-A (GB)
Title: Impressed current protection of titanium or titanium alloy in acid aqueous solution
IPC: C25D21/00
Filed: 1966-04-13
Abstract: 1,146,443. Preventing corrosion of titanium; electro-plating. M. & T. CHEMICALS Inc. April13, 1966 [April 14, 1965], No.16247/66. Headings C7B and C7E. Titanium or an alloy containing at least 90% Ti is protected from etching while immersed in an aqueous acid solution by placing it in intimate electrical contact with a low hydrogen overvoltage metal having a hydrogen overvoltage equal to or less than that of massive nickel and maintaining on the titanium or alloy a cathodic current density of 0À1 to 2 amps/sq. dm. The low hydrogen overvoltage metal which may be Pt, Pd, Rh, Ir, Au or Ni (including black nickel and electroless nickel) may be placed in intimate contact with the titanium or alloy by overlaying with a foil or a thin foraminous sheet of the metal, or by hot-melt dipping, dusting with metal powder followed by fusing, by immersion plating, by applying a foraminous sheet of a high hydrogen overvoltage metal e.g. steel itself coated with a low hydrogen overvoltage metal such as Pt or Pd, or by electroplating. Water-soluble compounds suitable for use in electro-plating are chloroplatinic acid or its potassium salt, platinum chloride, platinum diamino dinitrite, tetrammine platinous chloride or fluoride, potassium chloroplatinite, palladium dichloride, palladium nitrate, rhodium chloride, iridium tetrachloride, chloroiridic acid, chloroauric acid, gold chloride, and gold cyanide. Electro-plating is effected at temperatures of 20 to 90‹ C. with a cathode current density of 0À5 to 5 amps. /sq.dm. for 0À2 to 5 minutes to give deposits of thickness 0À05 to 0À5 Á which may be porous or even form discrete islands. Strips of Ti alloy containing 2% by weight Pd electro-plated with 0À15 Á Pt from an acid aqueous chloroplatinic acid solution suffered no loss in weight when made cathodic at a current density of 0À8 amp. /sq.dm. in a chromic acid plating bath containing silicofluoride and sulphate catalyst ions. Titanium or alloy so protected may be used for heating coils or elements, heat exchanger coils, partitions, stirrers or as sheets, rods or Ti-clad sheets in such chromium electro-plating baths. Reference is made also to protection in chromic acid plating baths containing simple fluoride, fluoaluminate, fluotitanate or fluoborate catalyst ions.
Patent GB-1235446-A (GB)
Title: Method of operating a nuclear reactor facility with a steam cooled fast breeder reactor as the heat source
IPC: G21D5/08
Filed: 1970-04-07
Abstract: 1,235,446. Nuclear power plant. GES FUR KERNFORSCHUNG m.b.H. 7 April, 1970 [16 April, 1969], No. 16308/70. Heading G6C. In a nuclear power plant, superheated steam generated from the reactor heavy water steam coolant is in part passed through a heat exchanger and in part passed through a L÷ffler boiler to generate the coolant steam. Superheated heavy water steam from reactor 1 passes to the heat exchanger 4 where superheated steam is generated for the plant 13, 14. The condensate from 4 flows to L÷ffler boiler 7 where it is evaporated by superheated steam from 1, fed by blower 10.
Patent GB-567483-A (GB)
Title: Improvements in and relating to overload relays for electric supply systems
IPC: H01H71/44
Filed: 1943-10-07
Abstract: 567,483. Electromagnetic switches. VLASTO, 1. T., and ARMITAGE, H. Oct. 7, 1943, No. 16412. [Class 38 (v)] An overload time-lag relay has two armatures 5, 4, the latter only coming into operation on an excessive overload and then moving upwards to short-circuit part of the magnetic flux so as to reduce the pull on the main contact-operating armature 5 and so increase the time lag. For normal overloads, the armature a moves downwards to close contacts against the action of a dashpot, to the piston 8 of which it is connected by a sleeve 7. The armature 4 has an adjustable head 11 and moves up against the action of a spring 10 on excessive overload. The armature 5 then descends slowly against the action of the dashpot, but at a reduced speed owing to the lessened pull.
Patent GB-738264-A (GB)
Title: Fluorescent material
IPC: C09K11/74
Filed: 1951-07-11
Abstract: 738,264. Luminescent materials. EGYESULT IZZOLAMPA ES VILLAMOSSAGI R.T. July 11, 1951 [July 12, 1950], No. 16428/51. Class 39 (1). A homogeneous fluorescent material consists of a compound of one or more alkaline earth metals, at least two elements of the nitrogen (V.b) group (with the exception of nitrogen) not serving as an activator, oxygen and one or more halogens, the compound comprising also at least one further element.of the nitrogen (V.b) group (with the exception of nitrogen), wherein each element of the nitrogen group amounts to at least 4 mol. per cent of the total amount of the elements of the group, and the fluorescent material being activated with at least one of manganese, tin, silver or one or more rare earth metals. The composition of the material is preferably such that it does not contain more alkali compounds than an amount of 0.01 per cent calculated in metallic alkali, particularly if arsenic is present. The material may have a crystal structure similar to apatite, e.g. M 5 (NO 4 ) 3 X, or similar to magnerite, e.g. M 2 (NO 4 )X, M being the alkaline earth metals, N the elements of the nitrogen group and X the members of the halogen group. A material of wagnerite structure can have the general formula (M<SP>1</SP>M<SP>2</SP>) 5 ((N<SP>1</SP>N<SP>2</SP>N<SP>3</SP>)O 4 ) 3 (X<SP>1</SP>X<SP>2</SP>)À In the specific example described 133.9 grs. of calcium phosphate, 7.6 grs. of anhydrous calcium chloride, 5.35 grs. of calcium fluoride, 5.5 grs. of antimony trioxide, 8.3 grs. of arsenic oxide and 2.4 grs. of manganese phosphate are mixed in a quartz container, one half of which is closed off with glass wool, and are then heated for 45 minutes at a temperature between 900‹ and 1100‹ C. After repeated stirring further heating is effected for 35 minutes. Washing is then carried out with hot distilled water and the finished powder is dried at a temperature between 100‹ and 280‹ C., and the powder ground down to a grain size of 8Á.
Patent GB-190185-A (GB)
Title: A new or improved process for treating fibrous materials for paper making and other purposes
IPC: D21C3/22
Filed: 1921-06-16
Abstract: 190,185. Weygang, C. June 16, 1921. Pulp, preparation of.-In preparing straw, particularly wheat and oat straw for paper making and like purposes, the straw is cut up and soaked for 12 to 24 hours or boiled under low pressure for 3 to 6 hours in a mixture composed of 8 parts of slaked lime mixed to a thin paste with water, 1 to 4 parts of petroleum or other refined or crude mineral oil, and 4 to 8 parts of sodium carbonate or sulphate previously dissolved in water. Where soaking is used, the straw is piled in heaps, the excess liquor being drained off and used for a fresh lot of straw. After treatment, the material is rinsed and converted into paper in the usual way. The rinsings are used for treating straw to produce coarse paper or boards.
Patent GB-497272-A (GB)
Title: Means for adjusting the electrodes of electric furnaces
IPC: H05B7/10
Filed: 1937-06-15
Abstract: 497,272. Supplying current to moving conductors. GROVES, W. W. (Akt.-Ges. f³r Stickstoffdunger) June 15, 1937, No. 16592. [Class 38 (i)] [Also in Group XI] Current is fed to a furnace electrode 6 by means of a rail 5 pressed by springs 4 against clamping plates 7 carried by a flexible band or chain.
Patent GB-1132123-A (GB)
Title: Improvements in web beam structures
Inventor: OZELTON ERIC CARL
IPC: E04C3/14
Filed: 1966-04-15
Abstract: 1,132,123. Wooden beams. WALTER HOLME & SONS Ltd. 17 April, 1967 [15 April, 1966], No. 16592/66. Heading E1W. A timber beam structure comprises two substantially contiguous united side assemblies, each comprising an upper batten 10, a lower batten 11 and a uniting bowed or arched element 12 between said battens, and also stiffeners 13 between the battens and elements, and a web of plywood 15 on each outer side. The web, which may be formed in sections, at least one of which is removable, may be accommodated in rebates in the battens and fixed to plates 14. The contiguous surfaces of the battens, arched elements plates and stiffeners of the two assemblies may be adhesively united.
Patent GB-374273-A (GB)
Title: Improvements in or relating to belts
IPC: F16G5/06
Filed: 1931-06-06
Abstract: 374,273. Driving-belts. FREEDLANDER, A. L., 522, Grand Avenue, Dayton, Ohio, U.S.A. June 6, 1931, No. 16607. Convention date, April 16. [Class 80 (i).] A V or round driving-belt of rubberized textile fabric internally gapped to facilitate bending is produced by rolling the material upon itself, if desired in two-ended form, or winding it around a mandrel, if desired in endless form, and then subjecting it to the following operations : (1) stretching, (2) moulding to form, if necessary, either before, after, or during the stretching operation, (3) while still stretched, freezing with solid carbon dioxide, brine, &c., (4) shearing while frozen to cut the gaps, and (5) vulcanizing in a mould of the form of the finished belt. Fig. 5 shows the freezing apparatus, the belt 1 being stretched by weights 10 while being cased in solid carbon dioxide 16. which reduces the temperature approximately to - 50‹ F. Fig. 7 shows the belt being sheared by a tool 19, the use of freezing material 16 being optional. Fig. 8. shows the finished belt.
Patent GB-1311428-A (GB)
Title: Foundry installations
IPC: F27B19/04
Filed: 1971-05-24
Abstract: 1311428 Cupola furnace plant AIR INDUSTRIE 24 May 1971 [17 June 1970] 16750/71 Heading C7D A foundry installation comprises at least one cupola discharging into a mixer, the exhaust gases from which are led through a heat exchanger to where they heat the blast for the cupola. Where the mixer is heated by a burner, air for the latter may be heated in a secondary heat exchanger preferably downstream of the main one.
Patent GB-677377-A (GB)
Title: Process of preparing oil soluble metal soaps
IPC: C07C51/41
Filed: 1950-07-05
Abstract: Oil-soluble polyvalent metal soaps are made by a hydrous two-phase metal-acid fusion process which comprises commingling at least one comminuted polyvalent metal, at least one organic acid capable of forming water-insoluble, oil-soluble heavy metal soaps, and a quantity of water to produce a reaction mass, and heating the mass to effect reaction thereof to a temperature above 100 DEG  F. under conditions to maintain the water in its liquid phase throughout the reaction while agitating the mass.  Many acids are specified, representative being oleic, naphthenic, nonanoic, phenyl, stearic, linseed oil fatty, tall oil and petroleum sulphonate acids. Naphthenic, tall oil and 2-ethylhexoic acids are preferred. Specified metals are lead, cobalt, iron, manganese, copper, zinc, nickel, aluminium and strontium.  The metal is preferably powdered. Water immiscible solvents, e.g. mineral spirits and xylol, may be present in the reaction mass and modifying agents, c.f. Specifications 493,878, [Group II], and 641,168, [Group III], to reduce the viscosity of the end product or to serve as antioxidants and stabilizers may be added before, during or after the reaction to modify the properties of the end products.  In examples the following salts are made:- cobalt, manganese, copper, iron, zinc and lead naphthenates, cobalt, manganese, copper and iron tallate, cobalt, manganese, iron, lead and zinc 2-ethylhexoates, manganese and zinc nonanates, lead basic naphthenate and basic tallate, copper oleate mixed tallates and naphthenates of cobalt and manganese, lead-cobalt salts of mixed 2-ethyl hexoic and naphthenic acids and a lead-cobalt salt of naphthenic acid.  A cobalt naphthenate containing triethanolamine lactate and amyl acid phosphate and a manganese naphthenate containing isobutyl acid phosphate are also made.  It is stated that amyl acid phosphate, triethyl citrate and tributyl citrate may be used instead of isobutyl acid phosphate.
Patent GB-1213066-A (GB)
Title: Improvements to meters for measuring torques
Inventor: HOLLICK ROBERT WILLIAM
IPC: H01H13/70
Filed: 1968-04-08
Abstract: 1,213,066. Photo-electric torque meters. BRITISH HOVERCRAFT CORP. Ltd. Feb. 13, 1969 [April 8, 1968], No. 16779/68. Heading G1A. A torque meter comprises two optical polarizing elements mounted on a torque transmitting shaft so that there is relative rotational movement when a torque is applied, a source and a detector arranged with the two polarizing elements between them, and means for excluding ambient light. The detector may be photo-conductive and included in one arm of a bridge to control an indicator, and the arrangement may include a self-balancing loop in which the bridge output is applied to rotate a further polarizing element relative to a still further fixed polarizing element in a second light path, to change the flux on a second detector connected in a second arm of the bridge and thus effect rebalance. The position of the rotated element is a direct reading of torque. The shaft may be waisted between the two elements and the polarizing axis of the elements may be at 90 degrees at rest. The output may operate a warming device, a digital counter or an automatic stopping device or be used in conjunction with another factor e.g. speed to indicate for example, power.
Patent GB-372973-A (GB)
Title: Improvements in and relating to the casting of magnesium and its alloys
IPC: B22D21/00
Filed: 1931-06-09
Abstract: 372,973. Mould materials. BADGER, F., 14, Grange Road, Clapham, London. June 9, 1931, No. 16814. [Class 83 (i).] Casting processes.-The whole inner surface of a mould, having chills and used for casting magnesium, or the surface of the chills only, is covered with a wash having a paraffin oil base. The wash may contain French chalk with one quarter its weight of jeweller's rouge and be applied by a spray.
Patent GB-476815-A (GB)
Title: Improvements in or relating to electron discharge devices
IPC: H04B3/00
Filed: 1936-06-17
Abstract: 476,815. Electron multipliers. FERRANTI, Ltd., and WILSON, J. C. June 17,1936, No. 16818. [Class 39 (i)] An electron multiplier has a source of electrons and a collector electrode, either of which is annular, and at least two secondary emis. sive surfaces, one of which is annular, disposed in such a manner that the electron streams form a series of approximately conical shells which together comprise a figure traced by the revolu. tion of a zigzag about a non - intersecting axis. In one form, electrons from a disc-shaped indirectly heated thermionic cathode pass to a parallel disc target emitting secondary electrons, which pass to a parallel annular target surrounding the cathode, electrons from which return to a third annular target in the same plane as the first target, the collector electrode being a cylindrical ring surrounding the system. The third target may be dispensed with if less multiplication is desired. In the modification shown, the targets 2, 6, 7 are conical frusta as also is the collector electrode 3. A control grid 4 may be placed between the cathode 1 and target 2 or in any other electron stream. Negatively-charged shields 8 may be provided to separate the incident and emergent streams of each target. The streams may be focused by a magnetic coil or electrostatically by a conducting cylinder surrounding the multiplier, for example, a coating of graphite on the envelope. The cathode may be photo-electric ; it may then be placed at the outside of the system to increase its area, the collector electrode being disposed centrally. The multiplication of the device may be controlled by variation of a transverse magnetic or electrostatic field which deflects a variable portion of the stream away from the targets. The Provisional Specification describes a modification in which a single disc target is disposed parallel to a disc cathode and an annular collecting electrode surrounds the cathode. A control grid between cathode and target, and a cylindrical shield between cathode and collector electrode are provided.
Patent GB-423479-A (GB)
Title: Improvements relating to welding rods and wires, and method of electric arc welding
IPC: B23K35/02
Filed: 1934-06-07
Abstract: 423,479. Uniting by fusion. WOOD, J. F., Railway Mills, John Street, Darlington. June 7, 1934, No. 16930. [Class 83 (iv)] A flux coated arc welding rod or wire is made by simultaneously wrapping round the core 1, asbestos or other cord or tape 2 and an intersecting exposed conducting iron or like wire 3, in such proportions that there is a substantially larger surface area of the tape &c., in contact with the core than of the wire. The core may be fed through a straightener 4 and flyer 6 provided with three or more spools for the tape and one or more for the wire, so that there is a space of at least three widths of tape &c., between the convolutions of the wire. The covered rod then passes under a conveyer 10 with perforated bottom through which an adhesive and flux drips onto the rod. The flux &c., is supplied to the conveyer by a roller 8 rotated in a trough 9. The rod then passes through rolls 11 or an abrading device to expose the desired area of wire 3, and then through finishing rolls 12 and is finally wound on a drum 13 either before or after passing through a heater.