baber/WOPTO huggingface dataset:
Patent GB-732302-A (GB)
Title: Improvements in folding gooseneck type trailers
IPC: B62D53/06
Filed: 1953-05-22
Abstract: 732,302. Trailer vehicles. MARTIN, W. E. May 22, 1953 [June 27, 1952], No. 14501/53. Class 108 (1). A gooseneck trailer, Fig. 4, has a verticallymovable hitch tongue 13 connected to the bed 11 by pairs of pivoted links arranged closely to approach a parallel link mechanism. The method of spotting the four-pivoted centres 18-21, Fig. 3, to suit predetermined raised and lowered positions of the hitch tongue with respect to the bed, in which the tongue is given a slight downward slope in the raised position and in the lowered position lies flat on the ground ahead of the bed, which positions may not be obtained with a true parallel link mechanism, consists of first disposing the head end of the bed in a given position relatively to the ground, and then disposing the hitch tongue ahead of the bed and at least as low as the bed end. A link 14 of predetermined length is then fitted to the bed and tongue at points 19 and 18, and a third point 20 is decided upon. A second link 15 of predetermined length is then selected, and an arc a-a<SP>1</SP> equal in radius to the length of the second link is then made about the point 20. The hitch tongue is then lifted on the fixed link 14 to the dotted position shown, giving the tongue a slight slope, and with the same radius and point 20 a second arc b-b<SP>1</SP> is made to spot the fourth point or pivoted centre 21. The links 14 and 15 are of equal length, but the distance from centres 19-21 is slightly greater than from the centres 18-20.
Patent GB-769819-A (GB)
Title: Improvements in or relating to air-break electric isolating switches
IPC: H01H31/34
Filed: 1955-05-20
Abstract: 769,819. Air-break switches. HARTIG, F. May 20, 1955 [May 20, 1954], No. 14524/55. Class 38(5) An air-break switch has joint-free contact arms 9, 12 mounted to swing in opposite directions on a supporting insulator 1 so that they approach each other in the contacting position to clip an overhead cable 15 or other conducting member between contact surfaces 14 on the arms. The arms may have substantially coaxial horizontal pivots and may be driven by gear wheels 8, 10 rotated by a compressed air motor 3 through gearing indicated at 4, 7 and a rotatable insulating shaft 5. Alternatively, the arms 9, 12 may form parts of bell-crank levers connected to operating gearing through cranks or links. In Fig. 2 (not shown) the contact surfaces 14 may co-operate with a conducting member secured between two overhead cables.
Patent GB-223837-A (GB)
Title: Improvements in or relating to readily fusible glasses and enamels
IPC: C03C8/10
Filed: 1924-06-16
Abstract: 223,837. General Electric Co., Ltd., (Assignees of Patent Treuhand Ges. f³r Elektrische Gluhlampen). Jan. 24, 1924, [Convention date]. Enamels; enamelling.-Glasses or enamels having a low melting-point consist of a lead borate or lead borosilicate composed of a number of constituents in accordance with the following molecular composition :-PbO, 1.0; B2O3, 0.45 to 0.55; SiO2, o to 0.20; Al2O3, 0.04 to 0.20; Na2O, 0.04 to 0.07; K2O, 0.01 to 0.02; As2O3, 0 to 0.01; Co2 O3, 0 to 0.04. The Co2O3 may be replaced by other colouring or opacifying agents. The mixture fuses at a temperature below 400‹ C., generally between 360‹ and 400‹ C. These enamels are suitable for marking electric lamp bulbs, their low fusing-point preventing the thin glass bulbs from becoming deformed while the enamel is being burnt on. They are also suitable for use as an adhesive between metal, glass, porcelain and the like. They may be used, also, for coating metal or glass bodies by heating the bodies and dipping them whilst hot into the powdered enamel. Specification 28524/03 is referred to.
Patent GB-1107869-A (GB)
Title: Improvements in or relating to metal film resistors
IPC: C23C14/58
Filed: 1965-04-06
Abstract: A resistor is made by depositing a Ni-Cr film on a ceramic base, depositing an Al film on the Ni-Cr by vacuum evaporation, sputtering or vapour plating, and then heating in air for 3 to 10 hours at 200 to 400 DEG C.
Patent GB-669552-A (GB)
Title: Improvements relating to the catalytic desulphurisation of petroleum hydrocarbons
IPC: C10G45/24
Filed: 1948-06-01
Abstract: The desulphurization of a naphthene-containing petroleum distillate boiling above 375 DEG C. is effected by passing it in vapour form and mixed with hydrogen over a catalyst which combines activity for dehydrogenation of naphthene molecules to aromatics with activity for the conversion of organically combined sulphur to hydrogen sulphide and which is not poisoned as a catalyst by the presence of sulphur compounds, at a temperature and pressure such that the dehydrogenation of naphthenes contained in the distillate is effected to an extent not substantially in excess of that required to produce sufficient hydrogen to convert organically combined sulphur in the distillate into hydrogen sulphide and to maintain the vapour phase in the reaction zone, a hydrogen-rich gas mixture being separated from the treated distillate and recycled to the reaction zone to constitute the whole of the hydrogen supplied to the zone.  Catalysts specified are metal sulphides and oxides of the 6th group, either alone or mixed: for example chromium oxide, tungsten sulphide, a mixture of tungsten sulphide and nickel sulphide, or cobalt molybdate or thiomolybdate, on a porous support such as natural or heat-treated bauxite, which may also be used as catalysts, activated alumina and kieselguhr.  The preferred catalyst is cobalt molybdate supported on alumina.  Pressures of 50-200 p.s.i. and temperatures of 750-800 DEG F. are preferred.  The space velocity should be 0.5-2.0 v/v/hr. and the gas recycle rate 2,000-4,000 cu.ft./bbl. of feedstock.  In the example, an Iranian wax distillate is heated to 800 DEG F. and passed over cobalt molybdate supported on alumina at a pressure of 100 p.s.i., the separated gases being recycled with the feedstock to the heating zone. Specifications 653,320 and 669,551 are referred to. The Provisional Specification mentions also the use as catalyst of molybdenum oxide supported on alumina.
Patent GB-272038-A (GB)
Title: New or improved apparatus for coating screws or other relatively small articles by dipping in molten metal
IPC: C23C2/34
Filed: 1926-06-14
Abstract: 272,038. Bayliss, Jones & Bayliss, Ltd., and Ingham, J. June 14, 1926. Galvanizing and coating by dipping. -In an apparatus for coating screws and other small articles by dipping them in molten metal, the screws &c. 17 are detachably mounted on carriers 12 carried by hooks 21 which are loosely hooked on the transverse members 11 fixed to chains 1 which pass over sprockets 2, 3, 4 and 5. The frame 14 on which the sprockets are mounted has the end at which the conveyer leaves the coating bath 6 inclined so that the carriers 21 hang clear of each other as they emerge from the bath 6. The carrier 12 comprises a bar 15, Fig. 5, provided with holes 16 for the articles 17 and projections 19 or an annular rib for supporting the heads of the screws &c. so that they are wholly immersed in the molten metal. The conveyer is driven by a hand crank or pulley on one of the 'axles of the sprockets 2 &c. and the travel of the conveyer may be continuous or may be stopped automatically in anv suitable manner or otherwise at regular intervals to permit the removal of the carriers. The articles may be supported in a wire or other cage instead of being supported by the carriers 12.
Patent GB-749349-A (GB)
Title: Improvements in the production of dyestuffs of the phthalocyanine series
IPC: C09B47/26
Filed: 1954-05-21
Abstract: Phthalocyanine sulphochlorides are reacted with 4-amino -41- nitrodiphenylamine -21- sulphonic acid to give the sulphonamides and hydrolysing any unreacted sulphochloride groups may be saponified to sulphonic groups or their ammonium or alkali metal salts.  The products are soluble in water and organic solvents, colour leather, paper and lacquers, and form lakes with salts of calcium, barium, strontium, aluminium, manganese, or iron.  In examples, (1) a mixture of copper phthalocyanine tri- and tetra-sulphochlorides is reacted to the extent of one sulphochloride group with 4-amino -41- nitrodiphenylamino -21- sulphonic acid in aqueous ammoniacal solution, the other sulphochloride groups being hydrolysed to sulphonic groups which from salts with the ammonia or with potash, ethanolamine, or diethylamine, or to the extent of more sulphochloride groups.  Also in examples, (2) cobalt and aluminium phthalocyanine sulphochlorides are reacted similarly. Nickel, iron, chromium, zinc, metal-free and tin phthalocyanine sulphochlorides may also be used.
Patent GB-570305-A (GB)
Title: Improvement in hardness measuring apparatus
IPC: G01N3/42
Filed: 1943-09-13
Abstract: 570,305. Testing physical qualities. AKTIEBOLAGET C. E. JOHANSSON. Sept. 13, 1943, No. 15016. Convention date, Oct. 7, 1942. [Class 106 (ii)] A hardness testing apparatus in which a point is pressed into the surface of the body under test, has a table, on which the body is placed, supported and guided by two broad, parallel, flat springs attached to the frame of the apparatus and is raised by means of a rod supported and freely movable in a lateral direction in a bore in the adjusting screw of the table. The apparatus as shown in Fig. 1, has a base 1 with a standard 2 on which is adjustably supported a slotted bracket 3 with two flat springs 5 carrying a slotted crosspiece 6 with a clamping screw to support a hollow shaft 8 in which slides the spindle 12 of a microindicator 9. Lateral adjustment of the cross-piece and indicator is effected by a micrometer 10 supported by an arm 11 secured to the standard. The spindle 12 is formed at its lower end with an impression member or point 13 of hard steel shaped as a pyramid or may be conical. The body 14, into which the point is to be pressed, may be nitrogen-hardened, chromium-plated or cyanidetreated surfaces and consist of thin films. It is placed on a table 15 provided with a central stem 16 locked in a slotted sleeve 18 and supported by two broad and parallel flat springs 19 attached to an adjustable bracket 20 on the standard 2. The table is raised by an adjustable screw 22, Figs. 1 and 3, formed with a central bore 24 in which is engaged a pointed rod 23, the upper end of which engages a punch mark in a leaf spring 25 that presses against the end of the stem 16. To load the point with the desired weights, the spindle 12 is provided with a round plate 27, Fig. 4, which serves to receive the ring weights 28, 29. These weights are supported by pins 43 on screws 42, Fig. 5, inserted in the forked end of a lever 36 pivoted on a bracket 32 supported on the hollow shaft 8. An arm 37 of the lever 36 has a flat spring 38 bearing on an eccentric 33 that can be turned by a manipulative lever 40. The pins 43 on at least two of the screws 42 are arranged eccentrically to ensure the proper application of the weights to the ring 27. The lever 36, 37 may also be turned by a screw 41 mounted in the bracket 32.
Patent GB-1033539-A (GB)
Title: Surface cleaning method and composition
IPC: C23G1/02
Filed: 1963-04-17
Abstract: Metal surfaces are de-scaled by treating with an aqueous solution containing an ethylenically unsaturated carboxylic acid e.g. maleic, acrylic, methacrylic, cinnamic, itaconic, or furoic acid, or maleic an hydride.  The solution preferably includes a major proportion of a cleaning agent e.g. sulphamic acid or sodium bisulphate, up to 20 per cent of maleic acid and a small amount of an inhibitor e.g. amines such as toluidine, amylamine, tetramethyl ammonium chloride, methyl aniline, or proprietory compositions containing either tuphenyl sulphonium chloride, or 1, 3-dibutyl thiourea mixed with alkali metal salts.  The composition which may be prepared in dry form is used as a solution to descale the metal surface of glass lined equipment which tends to suffer hydrogen penetration to the glass with strong acids.  The solution is circulated through the jacket for 6 hours and removes iron oxide, and alkaline earth phosphates and carbonates. When the scale contains sulphates and silicates, a pre-treatment with sodium carbonate and hydroxide solution is desirable.
Patent GB-338155-A (GB)
Title: Improvements relating to apparatus for use in the manufacture of batting and felts
IPC: D01G15/46
Filed: 1929-05-14
Abstract: 338,155. Johnson, J. Y., (Proctor & Schwartz, Inc.). May 14, 1929. Carding-engines; lap-forming apparatus. - Apparatus for use in the manufacture of batting and felts comprises the combination of a Garnett machine G, Fig. 1, of the type wherein the fibrous stock is formed into a unitary web of substantially uniform thickness on one of the rolls and is removed therefrom as a number of independent webs respectively constituting fractional thickness of the original web, the independent webs being subsequently united to reconstruct the unitary web, and a lapping machine L of the camel-back type. In Fig. 1 the stock X is fed by an apron C feed rolls 1, 2 and a licker-in 3 to the first cylinder 5 of a Garnett machine comprising a preliminary set A and a finishing set B. A lump roll 6, workers 7, 8, 10, strippers 9, 11, a fancy 12 and fancy stripper 13 co-operate with the cylinder 5, and the material is transferred by a doffer 14 to the cylinder 15 of the set B. The set B includes a stripper 34, worker 16, fancy 17 and fancy stripper 19, and two doffers 18, 25 the doffer 18 being offset from the cylinder 15 to take of a half-bat x<1> which passes down the conveyer 22. The second half-bat x<2> is lifted by the fancy 23 and doffed by the doffer 25 passing forwardly on the conveyer 27 to unite at x<3> with the half-bat x<1>. Wind rolls 31, 32 and a baffle 33 are provided to mask the effects of windage due to the fancy 23. The finished web X<1> is laid in superposed layers X<2> on the platform or conveyer H by the apron E, the lower end of which is reciprocated across the member H the upper ends of the aprons D, E simultaneously rising and falling. For coarser fibres a single cylinder Garnett machine G', Fig. 3, is preferred having teeth of coarser pitch and comprising a single cylinder 35, relatively large workers 38 - - 41, strippers 42 - - 45, doffers 18a and 25a, fancies 17<a> and 23<a>, and conveyers 22<a> and 27<a> serving to carry the separate webs away to the apron D of the lapping machine L. Specifications 24288/94; 30802/97, [Class 142, Weaving &c.] ; and 277,838 are referred to.
Patent GB-257215-A (GB)
Title: Improvements in or relating to spindle-driving mechanism for spinning, twisting or like frames
IPC: D01H1/242
Filed: 1925-11-26
Abstract: 257,215. Lambert, O. Nov. 26, 1925. Spindle - driving apparatus; stop-apparatus, non-automatic; spindle rails. - In spinning, twisting, or like frames, particularly for jute, hemp, flax, and the like, the spindles are mounted in bearings O, O<1> in a box or casing B partly filled with lubricant to the level N, and are driven by helical gearing from a shaft A, which is mounted in ball bearings, through pinions p and positive clutches E, each pinion p being loose on the spindle and arranged to drive it frictionally also through the cone c. The clutches E are splined on the spindles and operated by rods t provided with handles t' which are engaged by cam surfaces on a bar K.
Patent GB-1187842-A (GB)
Title: A Process for Treating Coal Schists.
IPC: C01F7/743
Filed: 1967-04-03
Abstract: 1,187,842. Recovering Al, Fe, and K from coal schists. PECHINEY, COMPAGNIE DE PRODUITS CHIMIQUES ET ELECTROMETALLURGIQUES. 3 April, 1967 [4 April, 1966 (2)], No. 15126/67. Heading C1A. Al 2 (SO 4 ) 3 , K 2 SO 4 , and Fe 2 O 3  are recovered from coal schists by a complex method which involves the steps of treating the schists with hot concentrated recycle H 2 SO 4 , treating the liquid extract with ethanol to precipitate mixed Al, Fe, and K sulphates, redissolving the precipitate in H 2 SO 4 , and cooling to crystallize out first KHSO 4  then Al 2 (SO 4 ) 3 , distilling ethanol from the ethanolic mother liquor, .cooling the solution to precipitate mixed Fe and K sulphates, recycling mother liquor to attack the schist, and calcining the precipitate and washing to give Fe 2 O 3  and a solution of K 2 SO 4 . In Fig. 1 (not shown), schist is ground and treated with H 2 SO 4  containing Al, Fe, Na and K (L10). The residue is washed with water in countercurrent to give a solution containing Al, K and Fe sulphates (L11). The liquid extract (L1) is mixed with mother liquor from the first crystallization of Al 2 (SO 4 ) 3  (L2), and EtOH added at 30 C. The precipitate (S1) is dissolved at 80 C. in L6 (same as L2) and the resulting liquid (L3) is cooled to 45 C. to precipitate KHSO 4  (S2). Mother liquor (L4) is mixed with wash water from the first crystallization of Al 2 (SO 4 ) 3  (L12), concentrated, and cooled to 45 C. to precipitate acid Al 2 (SO 4 ) 3  (with seeding). This precipitate is washed with mother liquor from the following crystallization, and dissolved in wash water from the following crystallization. Al 2 (SO 4 ) 3  5À5-6H 2 O is then crystallized out, washed with H 2 SO 4  and may be further recrystallized. EtOH is distilled off from the liquor after removal of S1 and recycled. The KHSO 4  (S2) is .dissolved in the remaining liquor. Part of this solution (L7) is concentrated and cooled to 60 C.; the other part is mixed with L11, concentrated, and cooled to 45 C. (optionally with seeding). Mother .liquors (L8 and L9) are combined to form L10. The mixed Fe and K sulphate precipitates (S3 and S4) are combined, calcined, and washed to give solid F2 2 O 3  and a solution of K 2 SO 4  from which crystals may be obtained. The SO 3  and SO 2  evolved is used to make H 2 SO 4 . In the modification of Fig. 2 (not shown), the schist is first calcined-at 500-900 C., and after extraction, the residue is washed in tanks 1, 2 and 3. Washing liquor from tank 2 (L<SP>1</SP>3) is concentrated, and cooled to precipitate mixed Fe and K sulphates (S<SP>1</SP>4). Mother liquor (L<SP>1</SP>4) is returned to tank 1. Part of L<SP>1</SP>3 may be used to attack the schist. Wash liquor from tank 1 (L<SP>1</SP>2) is mixed with the liquid extract (L<SP>1</SP>1).
Patent GB-584326-A (GB)
Title: Improvements in stack valves of water gas generators and the like
IPC: C10J3/72
Filed: 1944-08-09
Abstract: 584,326. Chimneys for gas generators. HUMPHREYS & GLASGOW, Ltd., and Mac- GREGOR, F. A. Aug. 9, 1944, No. 15144. [Class 25] [Also in Group XXIX] In a combined stack and safety valve for water gas generators &c. the valve b, seating on the stack a, has applied to it during the latter part of its closing movement weights o chosen according to the pressure at which the valve is to lift. The valve b is pivoted to a link f secured at one end to the axle e of a pair of wheels d running on laterally extending tracks c and at the other to an operating bell-crank g which is so disposed that it transmits largely vertical movement to the link f in the closed position of the valve shown. The final closure movement therefore seats the valve b and raises the wheels d from their tracks, whilst rollers l mounted on arms k fixed to the axle e coact with cam paths m<1> on loading lever m to raise the weights o from their supports o<2>. In a modification, the rollers and the valve are mounted directly on the axle and the final valve closure movement is effected by inclining the tracks downwardly at the appropriate point. Specifications 25,474/09, [Class 135], and 574,380 are referred to.
Patent GB-297006-A (GB)
Title: Improvements in and relating to inspection covers for drains
IPC: E02D29/14
Filed: 1927-06-08
Abstract: 297,006. Brent Foundry Co., Ltd., Rogers, S. S., and Wray, C. N. O. June 8, 1927. Manhole covers.-A movable airtight inspection cover a for drains has a small inspection cap d retained by a chain (not shown) and fitted with a hand recess k and handle l, the cap having a groove g and flange h engaging with a corresponding groove and flange on the opening in the cover a for making the cap airtight. The cap is locked on turning by lugs i which engage inclines j after the manner of a bayonet joint.
Patent GB-612239-A (GB)
Title: Improvements in driving belts and ropes
IPC: F16G1/04
Filed: 1946-05-21
Abstract: 612,239. Belt gearing. LITTLE, A. H., and IMPERIAL CHEMICAL INDUSTRIES, Ltd. May 21, 1946, No. 15332. [Class 80 (i)] [Also in Group XXV] Driving belts are either composed entirely of, or contain in their outer surfaces, composite yarns, cords or fabrics containing staple fibres or filaments, composed of polyethylene in combination with any fibre, filament or yarn which is in such a state that it is not capable of being cold-drawn, the ratio of polyethylene filament or fibre to other filament or fibre being between 1: 19 and 1: 1. The non-extensible fibrous materials are those commonly used in the manufacture of driving belts and ropes, such as cotton, drawn nylon, rayon, hemp and flax. When composite fabrics are used, they may be braided or woven from the composite yarns or they may be made from yarns composed entirely of polyethylene and of the non- extensible fibrous material respectively. In belts composed entirely of the composite yarns or fabrics, the various layers or threads in the belt may be bonded together by heat treatment at temperatures greater than 100‹ C. Specifications 471,590, 472,051 and 511,054, [all in Group IV], are referred to.
Patent GB-1469339-A (GB)
Title: Dishwasher
IPC: A47L15/46
Filed: 1975-04-29
Abstract: 1469339 Dishwashers THORN DOMESTIC APPLIANCES (ELECTRICAL) Ltd 29 April 1975 15363/76 Divided out of 1469338 Heading A4F  The description is substantially identical to that of the Specification 1469338 but the claims relate to the arrangement by which the water heater 38 is prevented from operating should the water level sensor 27 sense a low water level irrespective of the position of the switch 3, energization of the drying heater 37 via the switch 3 being independent of the sensor 27.
Patent GB-163920-A (GB)
Title: Improved method of manufacturing horns, trumpets, and the like
IPC: G10K13/00
Filed: 1920-06-07
Abstract: 163,920. Stevens, T. J., and Stevens, G. G. June 7, 1920. Sound magnifying and directing appliances.- Horns or trumpets designed for use with gramophones are manufactured on a heated former from strips of material composed of paper pulp intimately mixed with a binding-agent such as flour, alum, resin, and a small quantity of chrome alum. The strips are arranged with their edges abutting or overlapping, and under pressure adhere together without the application of additional adhesive. The horn may be reinforced with one or more layers of paper or fabric.
Patent GB-1147137-A (GB)
Title: Cathode ray display device
IPC: H01J31/16
Filed: 1967-04-04
Abstract: 1,147,137. Cathode-ray display tubes. GENERAL ELECTRODYNAMICS CORP. 4 April, 1967 [7 April, 1966], No. 15471/67. Heading H1D. In a symbol-displaying cathode-ray tube in which a flooding beam from cathode 14 is directed to a luminescent screen 13 through a barrier 21 comprising a plurality of perforated separate conducting layers each configured to form a symbol and an electrically separated background which may be selectively biased, the luminescent screen comprises a plurality of separate colour phosphors areas, e.g. in the form of strips, and the electrons are directed only to certain phosphors by a " switching grid " 16 to display the symbols in a selected one of a number of colours. The " switching grid " 16 comprises groups of perforated conductive areas, the areas of each group being energized to prevent or to allow the electrons to pass through them as desired. The conducting layers of the barrier 21 may be applied to glass discs and to anodized aluminium foils.