baber/WOPTO huggingface dataset:
Patent GB-894466-A (GB)
Title: Improvements in and relating to springs
IPC: C23C8/80
Filed: 1960-08-31
Abstract: A process of making a spring having high electrical or thermal conductivities of polycrystalline metal alloy hardenable by internal oxidation comprises the steps of subjecting said metal alloy under heat to an oxygen containing environment to oxygen harden the metal alloy, plastically deforming the hardened alloy by an amount equivalent to at least 50% reduction in cross-section and forming a spring therefrom.  The oxidation hardenable metal alloy has a solvent metal selected from silver, copper, palladium and nickel and an oxidizable metal such as magnesium 0,1 to 0,35%, beryllium 0,05 to 0,25% and aluminium dissolved therein.  After the plastic deformation the alloy is subjected to an annealing operation unless such deformation is at least 75% when annealing may not be necessary.  In an example a leaf spring of the alloy Ag 99,5%, Mg 0,3%, Ni 0,2% is rolled to a strip of 0,048 inch in thickness, hardened by heating in air at 1350 DEG F. for about 9 hours, cold rolled to 0,012 inch and annealed within a temperature range of 1000 DEG F. to 1400 DEG F.  In another example the leaf spring is made from an alloy of copper with 0,1% to 0,2% of beryllium, oxidized at 1600 DEG F. in a pack of Cu2O which serves to furnish oxygen at a partial pressure that will selectively oxidize Be without causing the copper to scale excessively.
Patent GB-173378-A (GB)
Title: Improvements in indicators for use in connection with internal-combustion engines
IPC: G01L23/02
Filed: 1920-10-23
Abstract: 173,378. Bennett, J. F., and Moorwood, S. D. Oct. 23, 1920. Steam-engine and like indicators.-Relates to that type of pressure-indicating apparatus in which a pressure gauge is connected to the cylinder or cylinders of an internal-combustion engine through an expansion chamber having a valve for opening and closing the passage between the gauge and cylinder, and consists in the valveoperating means and in the arrangement of the non-return valves in the case of multiple-cylinder engines. Fig. 1 shows the expansion chamber 1 formed with a passage 2 to a cylinder and a passage to a pressure gauge 9. A valve 4 closes the passage 2, the valve spindle 5 passing through the chamber to a lever 6 pivoted at 7 and acted upon by a spring 10 to close the valve 4. A non- return valve 11 is loosely mounted on the spindle 5, its movement being limited by a pin 12. The lever 6 is depressed to place the gauge under pressure. In the case of a multiple-cylinder engine shown in Fig. 2, the levers 6 are dispensed with, the spring 10 acting on a button 19 formed on the end of the valve spindle, a valve 4 being fitted for each cylinder. A casting 13 bolted to the chamber 1 is formed with cavities 14 around each valve 4, the cavities being connected to the engine cylinders by pipes 15 in the ends of which connected to the cylinder are fitted non-return ball valves, each of which can be regulated or closed by a spindle which forms a limit stop for the valve.
Patent GB-300224-A (GB)
Abstract: 300,224. Stein, R. Aug. 8, 1927. Chair pads; sound and vibration, preventing.- One or more layers of thin coiled wire which may intermesh are interposed between opposed bearing surfaces and thus form a support for railway or tramway rails and sleepers, heavy machinery beds and foundations exposed to shock and high pressures. The wires may be embedded in material adapted to resist high pressure and consisting, for example, of asbestos fibre and pitch and asphalt products. Fig. 1 shows helically coiled intermeshing wires embedded in asbestos &c. material, the general direction of the coils being substantially parallel to the wearing or pressure surfaces. A support g constructed in this manner may be disposed underneath the adjacent ends of rails c, c as shown in Fig. 2. Reference has been directed by the Comptroller to Specifications 1908/89, 10859/90, 3608/91, 666'7/92, and 7931/92, [all in Class 142, Weaving &c.], 25120/10, 145,858, and 268,438, [all in Class 20 (iv), Floors &c.].
Patent GB-602062-A (GB)
Title: Production of calcium
IPC: C22B26/20
Filed: 1945-11-09
Abstract: Metallic calcium is produced in coherent form by thermal reduction of lime in one retort located in a furnace and condensation of calcium vapour in another zone of the retort located outside the furnace, the method being characterised in that lime-containing material mixed with aluminium as a reducing agent is charged into the reducing zone of the retort and the inner end of the condenser zone of the retort is maintained at a temperature of 740-680 DEG C. to condense calcium vapour.  The condenser section may have a removable liner with insulating means for maintaining the inner end portion at a temperature not less than 740-680 DEG .  The condenser lining may be coated with sodium silicate, kaolin or graphite.  The charge may contain lime-containing material and aluminium in proportions to provide 105-120 per cent of the theoretical amount of aluminium for the reaction, and is preferably in the form of briquettes. Specification 270,060, [Class 82(i)], is referred to.
Patent GB-767860-A (GB)
Title: Improved blasting process
IPC: F42B3/087
Filed: 1954-10-19
Abstract: 767,860. Blasting devices. MAUMEE COLLIERIES CO. Oct. 19, 1954 [Nov. 5, 1953], No. 30094/54. Classes 9 (1) and 68 (1). In blasting rock, a dry bore hole 1a is loaded with ammonium nitrate charges 6 contained in flexible waterproof bags 7 with diameter nearly that of the borehole, the bags being deformed to prevent the formation of air pockets. A primer charge 4 is also introduced so that no point in the nitrate charge is more than 15 to 35 ft. from the primer charge and after stemming the charges the primer is detonated by Primacord 5. The charges 6 are granular free-flowing ammonium nitrate containing less than 1¢ per cent. moisture and mixed with 1 to 12 per cent. by weight of material generating gases on combustion. The combustible material may be carbon black and the waterproof material used for the bags may be polyethylene. The charges are placed in horizontal or sloping boreholes by means of a device having a scoop 10 slidably mounted on a jointed pole 9 having atamping head 11. A stop 13 limits the motion of the head 12 of the scoop, the head being provided with two cut-away sections 15, 16 to co-operate with nylon pins 14 extending from the pole. Longitudinal grooves in the bore of the head 12 are adapted to receive the pins 14. One or more bags of explosive are placed on the scoop, when the pins 14 are flush with the sections 15, 16 of the head 12. The device is then pushed into the borehole until the scoop reaches the bottom of the hole, and the pole is twisted clockwise through 180 degrees, so that the bags drop off the scoop. Then by twisting the pole counter-clockwise through 180 degrees, the pins 14 are brought into register with the grooves in the head 12. By a pull on a wire 23, the scoop is brought against the stop 13 and the pole pressed to bring the tamping head 11 against the explosive and compact the charges in the borehole. All metal parts of the device are of copper or bronze and other parts are of wood, plastic or rubber. The ammonium nitrate, which may have a grain size between 8 and 30 mesh, may be coated with 0.5 per' cent. by weight of rosin. Diatomaceous earth or aluminium stearate may also be used to coat the charges, to render them water-resistant and non-caking.
Patent GB-915573-A (GB)
Title: Esters of bis-ª--hydroxy ethyl sulphone
Inventor: VALENTINE LESLIE MACKENZIE
IPC: C07C317/18
Filed: 1959-06-02
Abstract: The invention comprises diacid esters of bis b -hydroxyethyl sulphone with polybasic inorganic acids and salts of these di-acid esters.  They are prepared by reacting the bishydroxy sulphone with an appropriate acylating agent and neutralising the product if salts are desired.  Examples describe the preparation of the di-acid sulphate using oleum or chlorsulphonic acid and the di-acid phosphate using P2O5 as acylating agent. Sodium, barium and potassium salts of the esters are mentioned. The compounds may be used as divinyl sulphone release agents in the treatment of cellulosic and proteinaceous materials as described in Specification 915,572.
Patent GB-795693-A (GB)
Title: Improvements in or relating to heat exchange devices
Inventor: CHRISTIAN JOSEPH DENNIS
IPC: F28F1/36
Filed: 1955-10-21
Abstract: 795,693. Continuous-discharge mixing- machines. HOLO-FLITE INTERNATIONAL, Inc. Nov. 14, 1956 [Oct. 21, 1955], No. 30146/55. Addition to 737,118. Class 86 [Also in Groups VI, XIII and XXX] A mixing machine comprising a heat exchanger in which cooling or heating medium passes through overlapping hollow screw-flights 15, 16 on rotatable shafts 12 which are also hollow for the flow of fluid, as described in the parent Specification, is modified in that the pitch 24 of each flight 15, 16 (or the average pitch of adjacent parts of the flight) is four to eight times the distance 25 between the leading plate 15 and the trailing plate 16 of the flight at the shaft. The pitch may be greater than half the diameter of the flight.
Patent GB-1026626-A (GB)
Title: Aqueous stove lacquers
IPC: C09D167/08
Filed: 1963-07-30
Abstract: Stove lacquers comprise aqueous solutions of salts of fatty acid residue containing alkyd resins with tertiary alkylamines having no more than 9 carbon atoms, and contain one or more basic pigments. The compositions may also comprise other pigments, fillers, organic solvents which are wholly or partially miscible with water and water-soluble aminoplasts. Conventional starting materials for the preparation of the alkyds, which may be modified also by colophony, abietic acid or abietyl alcohol are listed.  The basic pigments specified are zinc white, ZnO, lead cyanamide and Pb3O4 or mixtures thereof whilst non-basic pigments are TiO2, iron oxides and chromium oxide.  Alkyd resins are prepared in examples from (1) castor oil, trimethylolpropane, pentaerythritol and adipic acid, (5) linseed oil, linseed oil fatty acid, trimethylolpropane, glycerol and phthalic acid and (6) soya bean oil, soya bean fatty acid, pentaerythritol, glycerol and phthalic anhydride.  The products are neutralized with triethylamine.  For comparative purposes the alkyd of Example 1 is also neutralized with NH3, ethylamine, ethanolamine, diethylamine and morpholine.ALSO:Substrate such as iron sheets are coated by spraying, dipping, pouring or brushing with store lacquers comprising aqueous solutions of salts of fatty acid residue containing alkyd resins with tertiary alkylamines having no more than 9 carbon atoms, and containing one or more basic pigments together with, if desired, other pigments, fillers, water-miscible organic solvents and aminoplasts.  The coatings are hardened by storing at temperatures above 100 DEG C.
Patent GB-969848-A (GB)
Title: Moulding sand
IPC: B22C1/26
Filed: 1963-07-30
Abstract: 969,848. Mould and core materials. NATIONAL LEAD CO. July 30, 1963 [July 30, 1962], No. 30206/63. Heading B3F. A moulding sand comprises a binder consisting essentially of a substituted ammonium humate carrying one or more substituents in which at least one substituent comprises an alkyl radical having 14-20 C atoms in a straight chain, of from 0-4 parts of organophilic clay for each part of substituted ammonium humate, and of one or more organic liquids having molecular weights of at least 25. Many examples of substituted ammonium humate compounds are quoted. Organic liquids referred to are octyl alcohol, tall oil, nonyl phenol, aromatic and paraffinic oils e.g. diesel, fuel and coal tar oil, polyethylene glycols, polypropylene glycols, and phosphate esters of ethoxylated alkyl phenols, and mixtures thereof. Specifications 664,830 and 801,579 are referred to,
Patent GB-505104-A (GB)
Title: Improvements in the manufacture of tubes and other hollow articles from film-formingsolutions
IPC: B29C41/14
Filed: 1937-11-04
Abstract: 505,104. Moulding hollow articles &c. by dipping &c. DREYFUS, H. Nov. 4, 1937, No. 30229. [Class 87 (ii)] In moulding tubes or other hollow articles by depositing a film-forming solution upon a former, a base layer of solid material soluble in a solvent having little or no effect on the article produced is deposited on a hollow former having porous or perforated walls, the hollow article is formed on the base layer, and the solvent is applied to the base layer through the walls of the former to facilitate removal of the hollow article. The former has the same configuration as, and is slightly smaller than the article to be moulded. The base layer may be formed of gelatine or water-soluble cellulose ether and may be produced by dipping the former in an aqueous solution thereof. The. article may be formed by dipping or spraying cellulose derivative such as cellulose acetate or benzyl cellulose or from synthetic resins or from natural or synthetic rubber compositions. The solvent, e.g. water, may be introduced by means of a tube reaching to the bottom of a hollow former, or the former may be filled, so as to gelatinize or completely dissolve the base layer. Bottles may be formed from an elastic material such as rubber and the neck expanded over the wider part to remove the bottle from the former. According to the Provisional Specification, the base layer may be formed of fusible material such as wax which is melted after forming the article. The former may be provided with electric-heating elements or hot water or steam may be supplied.
Patent GB-979058-A (GB)
Title: Improvements in apparatus for grinding and polishing curved surfaces of glass articles
IPC: B24D13/14
Filed: 1961-08-22
Abstract: 979,058. Grinding; rotary abrasive tools. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. Aug. 22, 1961, No. 30251/61. Heading B3D. An apparatus for grinding and polishing a curved glass surface, e.g. the screen or face-plate 2 of a television tube, comprises a vertical shaft carrying at its lower end a flexible disc-shaped rotating carrier 4 which is provided on its lower side with grinding or polishing means and on the upper side with means for applying to the glass surface an evenly distributed load over substantially the whole of the carrier. The carrier 4 comprises two plates, 16, 18, of flexible material, e.g. foamed rubber, connected to a universal joint 6 by a plate 21, also of flexible material, and a holder 19 for supporting a container 29 into which the grinding agent is fed by a hose 32 from a pump, not shown. Grinding plates 22 are secured by adhesive to the plate 18 and a flexible envelope 24 of natural or synethetic rubber, filled with a weighty mass 23, bears on the plate 16; movement of the pressure member 24 is restricted by a metal ring 26 attached to it and secured by chains 27 to the container 29. The polishing head may be directly driven by the centrally disposed vertical shaft or it may be given a rotary and gyratory motion through an epicyclic gear 7. The work-table 1 may rotate or reciprocate.
Patent GB-1175361-A (GB)
Title: Mower Guard and Mower Assembly Incorporating the Mower Guard.
IPC: A01D34/13
Filed: 1966-07-06
Abstract: 1,175,361. Mowing machines &c. INTERNATIONAL HARVESTER CO. 6 July, 1966 [13 July, 1965], No. 30256/66. Heading A1F. A mower cutter guard 11 comprises a mounting portion 14 and a finger portion 19 from which projects a lip portion 23 to define a slot for a knife section 31 of a reciprocally mounted cutter bar assembly 12. Opposite sides of the lip portion are provided with cutting edges 26 for co-operation with said knife section. The lip portion is provided with knife guiding means, being either bevelled portions 40 or a transverse bar (142) Fig. 6 (not shown. The cutting edges of the knife section 31 are formed from bevelled sides (36), (37) Figs. 4 and 5 (not shown) and bevelled portions 38, 39 may provide cam surfaces for guiding contact with said cutter guard bevelled portions 40. Fig. 1 shows mower guards 11 spaced on mounting member 10 with cutter bar assembly 12 mounted for movement relative to member 10 and guards 11. Hold down clips 13 may also be provided.
Patent GB-984573-A (GB)
Title: Improvements in and relating to electrical impedance networks simulating inductance
IPC: H04B1/16
Filed: 1961-08-23
Abstract: 984,573. Frequency modulation; transistor oscillator circuits. PHILCO CORPORATION. Aug. 23, 1961 [Aug. 23, 1960], No. 30404/61. Headings H3R and H3T. A network simulating a high Q inductor comprises (Fig. 1) a transistor 10 with collector to base feedback resistor 11 and capacitor 12 connected between base and earth; the emitter being returned to earth over resistor 13 in series with low Q inductor 18. It is shown that if the latter is proportioned so that the base current Ib lags base voltage Vb so that collector current Ic is in phase with Ib and in lagging quadrature with Vc, a simulated high Q inductance appears at 16, 17 between collector and earth (Figs. 2, 3, not shown) and that by increasing the inductance of 18, Ic can be made to lag Vc by more than 90 degrees to present a simulated negative resistance component, so that if a capacitance is connected across 16, 17, selfoscillation occurs at frequency determined by the capacitance and the simulated inductance. In Fig. 4 the low Q inductance 18 is simulated by a transistor 22 whose collector and emitter are connected between the emitter of transistor 19 and earth, having a resistance 23 between collector and base and capacitance 24 between base and earth; the overall circuit simulating a high Q inductance at 25, 26. Adjustment of the values 23, 24 enable a negative resistance component to be obtained, so that self-oscillation ensues at frequency determined by the simulated inductance and a capacitance across 25, 26.
Patent GB-745738-A (GB)
Title: Improvements in and relating to ferro-magnetic media
Inventor: GABOR DENNIS
IPC: G10L21/00
Filed: 1952-12-01
Abstract: 745,738. Magnetic structures. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Nov. 26, 1953 [Dec. 1, 1952], No. 30466/52. Drawings to Specification. Class 38 (2). [Also in Group XXXVIII] A magnetic recording medium such as a tape, drum or disc includes two materials having differing ferromagnetic properties of such nature that the permanent magnetization of one having higher coercivity maintains the other, readily saturable material of lower coereivity in a state of magnetization in which its reversible permeability is substantially less than its initial permeability. In making a magnetic tape for use as the second one in the apparatus described in Specification 682,323, [Group XXXVIII], in which the frequency band required for transmitting signals is compressed, 30 per cent by volume of iron-cobalt powder forming the permanently magnetizable material is mixed with 15 per cent by volume of powdered manganese-zinc ferrite forming the material of relatively high permeability, and 55 per cent by volume of a binder. Alternatively the different substances may be in alternate layers of a composite recording medium. The advantages gained by uses of the invention are discussed. Specification . 645,542, [Group XXXVIII], also is referred to.
Patent GB-437145-A (GB)
Title: Improvements in the treatment of pile fabrics
IPC: D06Q1/06
Filed: 1934-10-24
Abstract: A process for the production of ornamental effects on pile fabrics comprises locally saponifying a pile fabric having a pile comprising or consisting of yarn having a basis of an organic ester of cellulose, e.g. cellulose acetate, formate, propionate or butyrate, and then finishing the fabric, e.g. by cross-brushing, so that the saponified pile yarn lies at a different angle from that of the unsaponified pile yarn.  The saponifying medium is preferably applied in the form of a paste containing the alkali or alkaline salt, e.g. 10--30 per cent by weight of sodium hydroxide. A swelling agent may be added to quicken the action.  Differential colour effects may be produced by cross-dyeing the treated fabric.
Patent GB-740346-A (GB)
Title: Improvements in or relating to the modification of synthetic resins and compositionscontaining them
IPC: C08G63/68
Filed: 1952-12-29
Abstract: Alkyd, phenol-aldehyde and epoxide resins are modified by reaction with 4 to 10 per cent by weight of the resin of a metal carbonyl at normal or elevated temperatures, e.g. 140 DEG  to 180 DEG  C. The carbonyl may be reacted with the resins during or after they have been worked up, e.g. with solvents, pigments and fillers, in the production of lacquers, paints, adhesives and plastic masses. In examples: (1) a castor oil-modified glyceryl phthalate resin is reacted at 150 DEG  to 160 DEG  C. with cobalt carbonyl to give, upon dilution with mineral spirits and butanol, a drying coating composition; (2) a novolak is melted with iron carbonyl at 140 DEG C. to give a product which can be hardened with half the usual amount of hexa and is suitable for casting and extrusion resin mixtures; (3) an epoxide resin, made from 1 mol. of p : p1-dihydroxydiphenylpropane and 2 mols. of 1 : 3-dichloropropane, is dissolved in ethylene glycol and reacted with iron carbonyl at room temperature to give a lacquer.
Patent GB-1399743-A (GB)
Title: Web handling mechanism
IPC: G03B21/32
Filed: 1972-06-29
Abstract: 1399743 Cinematography EASTMAN KODAK CO 29 June 1972 [1 July 1971] 30545/72 Heading G2E In a web handling apparatus e.g. a cine projector a mechanism for moving a film stripper to and from a cartridge 28 includes a cartridge supporting bar 4a, pivotable about shaft 13 to move into a cartridge supporting position and a film withdrawing hook 6 mounted on plate 7, which is also pivotable about shaft 13 to advance and withdraw the hook 6. To strip film from the cartridge 28, in the apparatus shown, button 5 is moved to the right, the plate 4 carrying bar 4a being urged to follow by a spring. Thus the bar 4a moves to and engages a cartridge 28 at mark 29 or 30 (depending on cartridge size). When this engagement occurs switch 37 is closed so ensuring the withdrawal operation is only initiated when the cartridge is properly positioned. The spindle 2 to turn the roll of film in the cartridge 28 and electromagnet 10 are then actuated. By means of drive belts (20), (21), Fig. 2, 3 (not shown), the roller 32 is driven from the same shaft as that connected to the spindle 2. Energizing the magnet 10 attracts armature 11 and lifts plate 7 against the action of spring 16 so that a drive roller (24), Fig. 2 (not shown) contacts surface 7b of a slot in the plate 7 to drive it in the direction F to advance film engaging hook 6 into the cartridge to engage a perforation in the leading end of the film. The advance of the plate 7 is limited by widened section 7c of the slot which breaks the driving contact with the roller (24) since the film is being rotated anti-clockwise (as viewed) by spindle 2, when the hook 6 engages the perforation, the hook and plate 7 are moved further in the direction F so opening switch 15, 17. This de-energizes the magnet 10 causing the plate 7 to drop and the roller (24) to drivingly contact surface 7d and thus withdraw the plate 7 and hook 6 with the film attached. This withdrawal leads the film end towards telescopic film guide 1b, 4c and in so doing moves the film between the roller 32 and pressure roller 33 which drive the film into the guide 1b, 4c. The withdrawal movement is limited by a widened end (7e), Fig. 3 (not shown), similar to end 7c at the other end of the slot. (For Figure see next page)