baber/WOPTO huggingface dataset:
Patent GB-174908-A (GB)
Title: Improvements in or relating to the manufacture of metallic compounds from ores
IPC: C01F7/02
Filed: 1921-12-23
Abstract: 174,908. Gat, J. D. Feb. 2, 1921, [Convention date]. Electrode and electrolytic furnaces. - Compounds of metal oxides with alkalis such as sodium aluminate or tungstate are obtained from natural substances, particularly silicates, by treating with a molten bath containing free alkali metal, obtained by electrolysis of an alkali compound such as sodium chloride with or without potassium, calcium, &c. chlorides. The apparatus described comprises a " sink " 10 having a well 25 and basin 11 heated by a fire on a grate 20. The fire gases pass through the flue 19 and hence through a flue 5 around a shaft 3. An anode 16 projects into the basin 11 and cathodes 18, in the same plane, into the " sink " 10 below the shaft 3. To start the operation molten salt is fed into the basin 11 through an inlet 15 (or solid salt may be fed in and melted by the current) until the level of the bath is about a third up the apparatus. When the current is turned on chlorine collects in a reservoir 12 and forces the bath to a higher level in the shaft, namely about two-thirds up. The solid material to be treated, for instance clay, kaolin, orthoclase, spodumene bauxite &c. is then fed in through the cover 7 and sinks in the bath. resting on a grate 9. The products are withdrawn from the well 25 by an outlet 26. The cathodes 18 may be replaced by a liquid lead cathode.
Patent GB-644093-A (GB)
Title: Apparatus for drying and heating powdered granular or like substances
IPC: F26B17/00
Filed: 1947-12-30
Abstract: 644,093. Drying-apparatus. SAHUT, CONREUR, & CIE. Dec. 30, 1947, No. 34753. Convention date, Dec. 14, 1943. [Class 34(ii)] Powdered or granular substances to be heated and dried are moved by scrapers 3 upon superposed foraminous or slotted beds 8, 10 so that the substance falls through the apertures from one bed to the next below through a current of hot gases, e.g. flue gases, flowing sinuously around the beds. Moreover the scrapers are attached to one or more endless chains 2 driven by a roller 4 over drums 1. The beds 10 comprise transverse slots which may be sinuous or straight and formed by the variable gaps between separate narrow plates 11. The thickness of the moving layer of substance fed from a top hopper 7 is determined by a loose flap 9 which rests on the substance and, together with a similar flap 16 at the bottom outlet, seals the'apparatus against cold air. Another flap 17 constrains the hot gases to be drawn up by a fan 15 through openings in the portion e, f of the top bed 8, the surface of the substance being moistened by spray racks 18 at this region to retain the dust suspended in the hot gases. The outer walls of the apparatus are built from cast iron sections a b c d, x y z t, i bolted together so that the plant may be easily dismantled and beds removed or added.
Patent GB-301328-A (GB)
Title: An improved process of treating metals or alloys
IPC: C23C8/32
Filed: 1928-11-26
Abstract: 301,328. Thiemann, F. Nov. 24, 1927, [Convention date]. Void [Published under Sect. 91 of the Acts]. Case-hardening.-Metals and alloys are hardened by exposing them to the action of gaseous hydrocyanic acid at a. temperature of about 800‹ C. Compounds which will produce hydrocyanic acid, such as ammonium cyanide, may be used; the hydrocyanic acid may be mixed with inert gases such as nitrogen, ammonia, or hydrogen.
Patent GB-649345-A (GB)
Title: Improvements in continuous press-gluing
IPC: B30B9/00
Filed: 1947-12-30
Abstract: 649,345. Presses. BERGVALL, K. L., DAHLBERG, E. E., and PALMGREN, A. O. G. Dec. 30, 1947, No. 34831. Convention date, Oct. 19, 1946. [Class 140] A continuously operating press for the gluing of laminated material, such as plywood, comprises compression plates united in pairs to form clamps 1 which press on the material 5 from opposite directions when running on a track 2 and are thereafter disengaged and returned on a track 4. Each clamp frame 6, Figs. 2, 3, is carried by loose wheels 8a, 8b, the axle 9 being fixed and the axle 10 movable relative to the frame and adjacent frames are supported one displaceably on the axle 9 and the other fixedly on the axle 10 to connect the clamps into an endless chain whereby they are conveyed in a closed path in a plane perpendicular to the direction of the pressing force. Each clamp is brought into operative engagement with the material as a lever 15 is turned clockwise, as viewed in Fig. 2 by the engagement of a roller 17b with a fixed cam bar (not shown) so that the material is pressed between the plates 21 and 7 under the loading of the spring 24. The clamp is released as a roller 17a engages a fixed cam bar 14. A flexible driving member consisting of a chain 12, a band 13, wire, or rope may be provided on one or both sides and may form an additional or alternative connection between clamps, and is secured to one end of the axles 9 and 10 and is thus rigidly secured to each clamp only at one point. Endless steel bands 27a, 27b running on pulleys 28a, 28b may be inserted between the working material and the compression plates, or interengaging portions 30 may be arranged on corresponding plates of adjacent clamps to fix the mutual position of the plates, thereby bridging over or preventing interruptions in uniform pressure in the joints between adjacent plates. Abutments, as at 29, may provide correct positioning of the working material and one or more intermediate separating plates 31, connected to a guide sleeve 32 having a limited displacement on the shaft 9, may be introduced to enable two or more strings of material to be pressed simultaneously, Fig. 7 (not shown). The press may be operated by a driving wheel 3, rotation of the pulleys 28a, 28b, toothed racks arranged on the clamps, or by the material being pushed or pulled through the press. The press or parts thereof may be enclosed within a heatinsulating temperature-controlled casing.
Patent GB-957039-A (GB)
Title: Combined air supply pipe and communication link for divers
Inventor: WATKINS WALTER WILLIAM
IPC: B29D23/00
Filed: 1959-10-14
Abstract: 957,039. Hose pipes. ASSOCIATED ELECTRICAL INDUSTRIES Ltd., and J. BUCKINGHAM. Oct. 13, 1960 [Oct. 14, 1959], No. 34864/59. Heading F2P. A textile reinforced rubber tube 1À1 for air supply is surrounded by a plurality of concentrically arranged tubular electrical conductors 14, 17 which extend along the length of the tube and are insulated from each other. The conductor 14 may comprise tinned copper braid and the conductor 17 consist of a composite braid of filaments of tinned copper and nylon. There is an outer rubber sheath 18.
Patent GB-302896-A (GB)
Title: Improvements in or relating to apparatus for dispensing beverages
IPC: B67D1/00
Filed: 1928-11-27
Abstract: 302,896. Richardson Corporation, (Assignees of Benham, L. L.). Dec. 22, 1927, [Convention date]. Dispensing liquids. - A device for dispensing drinks comprises a transparent bell 10 carried by a pedestal 11 on a cabinet 1. An opening- 13, Fig. 8, in the pedestal 11 permits passage of the liquid into the bell 10, a drain opening 14 permitting return of the liquid from the bell 10 to a feed tank 3 through a flexible tube 16. A pump 7 drives the liquid to the bell 10 through a pipe 8, hose 18, coupling 19 and pips 20 which is preferably arranged centrally in the bell so that the liquid spurts up in a fountain. The pump 7 maintains constant circulation of the liquid. To dispense the liquid, a glass tube 25, which is slidably mounted for endwise movement in a fitting 28, is moved inwardly against a spring 31, Fig. 4, until the end of the tube 25 is positioned above the end of the tube 20, as shown in Fig. 3.
Patent GB-627519-A (GB)
Title: Dyestuffs of the anthraquinone acridone series
IPC: C09B5/34
Filed: 1946-11-25
Abstract: Anthrimides are prepared from an anthraquinone - 2.1 - (N), 11.21 - (N) - 61 - halogen-benzacridone or 61 - halogen - naphthacridone (in which the 51-position is free or is occupied by a group which does not hinder subsequent ring-closure, and in which the 31- and 41-positions of the benzene nucleus, and the 31-, 41-, 71- and 81-positions of the naphthalene nucleus may carry alkyl, alkoxy, aryloxy, or halogen) and 4-, 5-, or 8-aminoanthraquinone-2.1 - (N), 11.21 - (N) - benzacridone (which may carry alkyl, alkoxy, aryloxy, or halogen in 31-, 41 and 51-positions and alkyl, alkoxy, or aryloxy in 61-position), by heating in an anhydrous diluent, such as nitrobenzene or naphthalene, in presence of a copper condensing agent and an acid-binding agent.  The anthrimides, which dye vegetable fibres grey to green shades, may then be carbazolised with aluminium chloride in an anhydrous diluent, to give dyes of corinth to navy-blue shades.  Where the first-mentioned reactant has an aryloxy group in 31-position, carbazolisation occurs simultaneously with anthrimide formation.  In examples, anthraquinone 2.1-(N), 11.21 - (N) - 4 - amino - 41 - chlorobenzacridon is condensed to the anthrimide, followed by carbazolisation, with the following: (1) anthraquinone - 2.1 - (N), 11.21 - (N) - 31.61-dichlorobenzacridone, or (2) the corresponding 31 - methyl - 61 - chloro body, or (3) the corresponding 31 - methoxy - 61 - chloro body, or (4) the corresponding 31-phenoxy-61-chloro body, a separate carbazolisation step being unnecessary in this last case. Also (5) anthraquinone - 2.1 - (N), 11.21 - (N) - 4 - amino benzacridone is similarly reacted with anthraquinone - 2.1 - (N), 11.21 - (N), 31.61 - dichlorobenzacridone.  Specification 437,598 is referred to.
Patent GB-484977-A (GB)
Title: Improvements in trawling nets for deep sea fishing
IPC: A01K73/02
Filed: 1936-12-04
Abstract: 484,977. Trawl nets. HOLLAND, H. D. Dec. 4, 1936, No. 34951/37. Divided out of 488,283. [Class 48] A trawl net with two parallel cod-ends has readily attachable and detachable sections, such as an expansion centre-piece. The net sections have automatic looping arrangements so that the net is divisible under excessive stress. The net has edge loops with double or treble the strength of the net twine, and weak loops for division. Fig. 6 shows two sections connected together by weak loops A and strong loops B, clasped to the headline and foot-rope by a weak piece of twine. Fig. 8 shows an eccentric section for use if the mesh rows are uneven or the sections out of adjustment. The Provisional Specification refers to Specifications 442,005, 453,012, and 458,183.
Patent GB-1485416-A (GB)
Title: Process for machining a workpiece and apparatus for orienting and positioning a workpiece for machining
IPC: B23Q1/48
Filed: 1974-08-08
Abstract: 1485416 Milling; workpiece supporting AVONDALE SHIPYARDS Inc 8 Aug 1974 [20 Aug 1973] 35058/74 Addition to 1398181 Headings B3K and B3B In a process of machining large complex curved workpieces, e.g. a marine propeller 18, the workpiece is supported on apparatus comprising a vertical column 11 movable vertically (V movement) by an hydraulic ram 90, a support table 54 through which the column 11 moves and which supports the column for rotation about its vertical axis (C movement), and is movable horizontally along tracks to move the column sideways (W movement), the column 11 having a U-shaped upper portion 12 carrying a trunnion 13 mounted housing 24 pivoted through 90 degrees by fluid pressure rams 16 (B movement), the housing 24 carrying a rotatable face plate 14 (A movement) in which the propeller is mounted. The said apparatus is sited so as the column can be moved adjacent a boring mill 30 having a cutting tool 31 movable in three mutually perpendicular directions X, Y, Z. The propeller is lowered on to the face plate 14 when in its horizontal position, and the face plate is then rotated 90 degrees to present a blade for machining in a vertical orientation. During machining the various movements X, Y, Z of the boring mill, and A, B, C, V, W of the workpiece support apparatus are controlled through computer programme and N.C. means to ensure that the workpiece surface being machined is substantially perpendicular to the cutting tool spindle. The column 11 retracts into a pit 36 and the support plate 54 runs along tracks on either side of the pit opening. The propeller 18 can first be mounted on a support plate (200) (Figs. 16-22, not shown) by means of support members (210) which are bolted to the plate (200) and to which the propeller is adhered by means of an epoxy resin thermo-setting compound (242), (244). An electric strip heating element (240) is embedded in the compound so that heat can be applied to release the propeller after machining.
Patent GB-787368-A (GB)
Title: Production of tetracycline by fermentation
Filed: 1955-12-07
Abstract: Tetracycline is produced by aerobically growing a chlortetracycline-producing species of Streptomyces in an aqueous solution containing a source of carbon and as sole source of organic nitrogen substantially oil-free cottonseed endosperm flour (i.e. contains less than 5 per cent of oil), together with mineral salts but excluding chlorides.  The flour is obtained by cooking dehulled cottonseeds, pressing out the oil, collecting by air settling the endosperm and then grinding to a flour.  This is not cottonseed meal which is unsuited for use in the media of the invention.  The endosperm flour is used in proportions of 0.1 to 10 and preferably 0.5 to 2.0, per cent of the fermentation medium except that it may be used in conjunction with bakers yeast or dechlorinated corn steep liquor.  The bakers yeast is used in quantities of 0.1 to 10.0, and preferably 0.5 to 3.0, per cent and the dechlorinated corn steep liquor in quantities of 1.0 to 3.0 per cent.  If desired, ammonium salts and nitrates may also be present.  The dechlorinated corn steep liquor contains less than 20 p.p.m. and preferably 1 to 2 p.p.m. of chloride ion; 0.5 to 5 per cent of the carbon source is used. Specified sources of carbon are: starch, sucrose, glucose, maltose, dextrose, glycerol, galactose, soybean oil, xylose, arabinose, rhamnose, fructose, lactose, inulin, dextrin, mannitol, lard oil, corn oil, peanut oil, cottonseed oil, soybean oil, olive oil, sperm oil, palm oil, whale oil, glyceryl monostearate and glyceryl monooleate. Fermentation is at 24 DEG  to 35 DEG  C. under submerged aerobic conditions.  Specified micro-organisms are Streptomyces aureofaciens NRRL 2209 and Streptomyces viridifaciens ATCC 11989. The mineral salts are e.g. potassium phosphate, magnesium sulphate, sodium nitrate and exclude chlorides; trace elements are e.g. zinc, manganese and copper.  A buffer such as calcium carbonate may also be present.  Specification 770,065 is referred to.  Reference has been directed by the Comptroller to Specification 747,779.
Patent GB-430171-A (GB)
Title: Improved manufacture of sulphur dyes
Filed: 1933-12-14
Abstract: Sulphur dyes in suspension or solution are evaporated to dryness in trays, pans, endless bands or vessels capable of containing a layer of appreciable thickness, in a partial vacuum, and converted to grains.  According to the example, liquid Thional black LS is dried on trays at a depth of \ba1/2\be--1\ba1/2\be inches under reduced pressure to give a porous mass.  Salts such as sodium thiosulphate or chloride may be added to the sodium sulphide solution of the dye before drying.  Specifications 357,065 and 418,746 are referred to.
Patent GB-654267-A (GB)
Title: Preparation of improved quaternary salts
IPC: C08F26/06
Filed: 1947-12-31
Abstract: Quaternary salts of polyvinyl pyridines and quinolines are made by heating, e.g. from 60 DEG  to 200 DEG  C. a vinyl pyridine or a vinyl quinoline or their polymers with a quaternizing agent.  The quaternization may be effected in mass or in the presence of an inert solvent such as 1-4 dioxane or nitrobenzene.  Specified polymers are poly-2-vinylpyridine, 4-vinyl-pyridine and 2-vinylquinoline. Specified monomers are 2- and 4-vinyl pyridine.  Specified quaternizing agents are methyl, ethyl, n-propyl, n-butyl, isobutyl p-toluenesulphonate; methyl, ethyl, n-propyl, n-butyl, isobutyl benzenesulphonate; dimethyl, di-n-propyl, di-n-butyl, diisobutyl sulphate; methyl, ethyl, n-propyl, n-butyl, isobutyl, n-nonyl, n-decyl iodide.  The salts are useful as precipitants and mordants of acid dyes, also as emulsifying agents.  Specifications 654,266, [Group XX], and 654,268 are referred to.
Patent GB-384098-A (GB)
Title: Shaving devices
IPC: B26B21/20
Filed: 1931-12-21
Abstract: 384,098. Reservoir brushes. HOPE, F. T., 422, Leary Building, Seattle, Washing- ton, U.S.A. Dec. 21, 1931, No. 35318. [Class 19.] A shaving-appliance comprises a safety razor of the clamped-blade type with a rubber brush 40 carried in the centre of the clamp-plate 10, the handle 8 carrying a cartridge 39 of soap which is extruded through a hole 28 at the brush centre by a piston 33 actuated by a screw 34 secured in a rotatable head 35. The blade 9 is preferably of Maltese-cross four-edged form, the clamp 10 and guard 11 being formed to correspond.
Patent GB-1509116-A (GB)
Title: Turntable drive mechanism in microwave oven
IPC: H02K5/128
Filed: 1976-08-25
Abstract: 1509116 Microwave ovens MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 25 Aug 1976 [27 Aug 1975 2 Sept 1975 3 Sept 1975 9 Sept 1975 12 Sept 1975] 35349/76 Heading H5H In a microwave oven, a roller mounted turntable 22 is driven by magnetic coupling through a bottom wall of the oven cavity from a driven rotary carriage 32 outside of the oven chamber. The rollers (41, Fig. 6, not shown) may be mounted on axles in supports fixed beneath the turntable. Preferably rollers 29 are mounted on stubs 30c extending radially outwardly from a flexible ring 30, the turntable resting on the top of the rollers and the ring 30 being retained adjacent the turntable by tabs 26a extending from magnet housings 24. Ferrite magnets lie in stainless steel housings 24 to protect them from microwaves and are held in place by polypropylene blocks 26. Rollers may run in an annular recess or in a circular depression in the floor of the oven cavity. Rotary carriage 32 may have rollers 36 spacing the disc of the carriage from the bottom wall of the cavity. Magnets 25, 35 have their longitudinal axis radially orientated and are polarized such that opposite poles of driving and driven magnets are adjacent. Rollers and carrier ring 30 are preferably of glass-reinforced plastics, polytetrafluoroethylene and polysulphone or polypropylene respectively. Turntable 22 is of 18 Cr 8 Ni stainless steel, as are the walls defining the oven cavity (10a-10d, Fig. 1, not shown).
Patent GB-305348-A (GB)
Title: Improvements in and connected with electric globe holders
IPC: F21V17/06
Filed: 1927-12-31
Abstract: 305,348. McKellar, A. Dec. 31, 1927. Mounting globes directly on rods or tubes.-A carrier for an electric lamp globe or shade is formed of springy material, and has part circular portions C with internal flanges or teeth E on their upper and lower edges, and raised end portions C<1>. The teeth E engage the threaded portion of the holder, from which they may be disengaged by pressure on the ends C', causing the portions C to spread outwardly. Tongs may be provided for engaging the end parts C<1> in cases where the neck of the globe is too restricted to allow them to be gripped with the fingers.
Patent GB-1492420-A (GB)
Title: System for the heat-insulation of horizontal closure surfaces in a nuclear reactor of the liquid-metal cooled type
IPC: G21C11/08
Filed: 1975-08-28
Abstract: 1492420 Reactors COMMISSARIAT A L'ENERGIE ATOMIQUE 28 Aug 1975 [6 Sept 1974] 35540/75 Heading G6C A sodium-cooled fast reactor core is mounted in a concrete vault, the roof 9 of which is provided with a central opening for positioning a system of two shield plugs 11, 12 protected by thermal insulation 15 which is in contact with the blanket gas. The roof 9 is provided in addition (Fig. 1, not shown) with passageways for mounting internal components such as pumps (14) and heat exchangers (13) necessary for the crculation of the sodium coolant. The small shield plug 11 which is mounted eccentrically within the large shield plug 12 is traversed by the reactor core closure plug 19 and a handling tool 20. An opening or manhole in the large shield plug 12, useful for maintenance work on the reactor core, is closed during normal operation by a shield plug 21 having a similar structure to the two shield pluts 11, 12. Each plug 11, 12 comprises a concrete section 22 cooled by water circuits 23 and provided with thermal insulation 15. The thermal insulation 15 comprises an assembly of horizontal metal plates 24 separated from each other by spacer members 25, the bottom plate 26 being of greater thickness. The plates 24, 26 may be of stainless steel. The stack of plates is traversed by tubes 27 each containing a rod 28 fitted with a nut 29 at its lower end while its upper end is welded to the surface 30 to be insulated. Shells 32, 37, 38 which are welded to the bottom plate 26 surround the assembly of anti-convection plates 24 and extend to a top level 34 of the structure to be protected within annular spaces 36a, 36b, 36c provided between the different parts of the shield plugs and also between the vault roof and the shield plugs. The thick bottom plate 26 is suspended from the concrete section 22 of each shield plug 11, 12 by means of the rods 28 and the plates 24 are supported directly on the plate 26. The shells 32, 37, 38 form a labyrinth within the annular spaces 36a, 36b, 36c with the result that any deposition of sodium condensates within the thermal insulation is made virtually impossible. As is apparent from Fig. 4, the shells 32, 37, 38 together with the plate 26 form a casing C which surrounds completely the sides of the thermal insulation 15. The shells 32, 37, 38 are capable of expanding freely within the annular spaces 36a, 36b, 36c when subjected to high thermal gradients, thus preventing the formation of thermal stresses.
Patent GB-381030-A (GB)
Title: Method of impregnating wood
IPC: B27K3/12
Filed: 1931-12-23
Abstract: 381,030. Impregnating wood. SCHMITTUTZ, C., 29, Salinenstrasse, Bad Kissingen, Germany. Dec. 23, 1931, No. 35554. [Class 140.] Freshly cut wood is stripped of bark, coated with a water-soluble impregnating substance in pasty form, and left coated until dry. The paste may be applied to a strip of paper &c. which is wound around the wood. Suitable compositions comprise sodium fluoride, dinitrophenol and gum arabic, casein, or starch, made into a paste with water. Reference has been directed by the Comptroller to Specifications 15316/01, [Class 70, Indiarubber &c.], 159,479, 286,560, and 286,886, [all in Class 140, Waterproof &c. fabrics].
Patent GB-467611-A (GB)
Title: Improvements in or relating to cathode ray tubes and apparatus comprising them
IPC: H01J29/62
Filed: 1935-12-23
Abstract: 467,611. Supply systems for cathoderay tubes. GENERAL ELECTRIC CO., Ltd., and JESTY, L. C. Dec. 23, 1935, No. 35577. [Class 38 (iv)] [Also in Group XL] In cathode-ray tubes of television receivers or other apparatus containing a diaphragm 6 cutting off the peripheral portion of the electron beam so that no part thereof strikes the electrodes 4, 5 of an electrostatic lens, the electrode 4 and diaphragm 6 are spaced apart and fed from an independent potentiometer of high impedance, such as 4 megohms, not absorbing a large fraction of the power required to operate the tube. Variations in the voltage of the diaphragm 6 due to the varying current to it and to the impedance of its supply potentiometer do not affect the field between it and the electrode 4 sufficiently to produce any deterioration of the focusing of the beam, and as the potentials of the electrodes 4, 5 do not vary, the focusing thus remains constant. The two potentiometers are fed from a single lowimpedance source. Potentials and dimensions are specified.