baber/WOPTO huggingface dataset:
Patent GB-1475877-A (GB)
Title: Rotary machine
IPC: H02K5/22
Filed: 1974-08-13
Abstract: 1475877 Dynamo-electric machines SIEMENS AG 13 Aug 1974 [16 Aug 1973] 35669/74 Heading H2A In a rotary machine having co-axial and relatively rotatable parts 2, 4 separated by an annular gap 5 containing an electrically conductive liquid having ferromagnetic properties, the liquid is retained in the gap, both when the parts 2, 4 are stationary and when they are rotating relative to one another, by a magnetic field passing radially across the gap. The parts 2, 4 shown are the rotor and stator of an electric machine, e.g. a homopolar machine. The liquid serves to conduct an electric current between the rotor and stator. When the rotor is stationary the magnetic properties of the liquid enable the field of coils 10, 11 and 12, 13 to retain the liquid in the annular gap. When the rotor rotates, electric currents induced in the liquid impart to the liquid a force tending to counteract any movement of the liquid laterally outwards.
Patent GB-476979-A (GB)
Title: Improvements relating to laminated wood products
IPC: B27D1/04
Filed: 1936-12-30
Abstract: 476,979. Compound sheet materials. SAMSONOW, E. A. C. DE. Dec. 30, 1936, No. 35697. Convention date, Dec. 30, 1935. [Class 140] [Also in Group XXIII] A compressed laminated wood product, produced by joining wood veneers by heat-hardenable resins or other cement which does not impregnate the wood, adhesion being effected at a high temperature and a pressure sufficient to close up the cellular structure of the wood substantially wholly, has entirely embedded in it metal in the form of granules, flakes, filaments, or wire fabric. The product is suitable for the manufacture of brake linings, clutch discs and the like and balls for games may be turned from it. In an example, the product being suitable for the last purpose, 2 mm. thick beech wood veneers dried to a moisture content of about 10 per cent are covered with a thin layer of a synthetic resin solution, and sprinkled with finely granulated lead, the weight of lead being equal to that of the sheets. After drying in air, a pile of the sheets, with their grains either in the same direction or cross, is pressed at a temperature of 145 to 150‹ C. and a pressure of 200 kilograms per square centimeter. The product has a density of about 2À5. By substituting for the lead fine turnings of copper or brass, a product suitable for clutch discs is obtained. In another example, brass gauze of 0À5 mm. wire with 5 mm. meshes is immersed in synthetic resin and a pile consisting of alternate sheets of the gauze and of 2 mm. beech veneers is compressed. Sheets cut from the product at a slant to the veneers are suitable for brake linings. In a further example, 1 mm. birch veneers coated with synthetic resin are secured together in pairs by compressing rollers, a warp of copper wires 0À2 mm. thick with 2 mm. spaces between them being introduced between the two sheets. The pairs are then coated with resin, dried, piled with the wires either parallel to or crossing one another, and compressed at 100 kilograms per square centimeter at a temperature of from 140 to 145‹ C. The product is less hard, and gives a less fierce braking or clutching action, than that previously referred to.
Patent GB-1203944-A (GB)
Title: Method and apparatus for increasing and indicating filament life
IPC: H01J9/42
Filed: 1967-08-18
Abstract: 1,203,944. Automatic voltage control. AMPEX CORP. Aug.18, 1967 [Aug.19, 1966], No.35878/67. Heading G3R. [Also in Division H2] A circuit arrangement for prolonging the life of a cathode filament 18 of an electron microscope and for indicating the end of the useful life thereof comprises a constant voltage supply source 20 for the filament and an indicating device 24 indicating the end of life. The supply voltage to the filament is maintained constant by means of a feedback link 22 or by manual means. During the life of the filament evaporation thereof takes place causing- with a constant voltage supplya gradual reduction in the filament current. This reducation in current alters the indication of the device 24 and when the filament current reduces to a predetermined valuesay 80% of the initial filament current settable by resistor 26- the filament is considered to be at the end of its useful life.
Patent GB-427537-A (GB)
Title: Improvements in or relating to typographic moulds
IPC: B41B7/04
Filed: 1934-12-14
Abstract: 427,537. Type moulds. MONOTYPE CORPORATION, Ltd., 43, Fetter Lane, London.-(Indahl, M. C. ; 24th at Locust, Philadelphia, U.S.A.) Dec. 14, 1934, No. 35901. [Class 100 (iii)] Moulds for use in machines such as that described in Specification 8633/ 99, [Class 100], comprise two type-blocks, each provided with a cast-forming surface and with a positioning- surface located at a distance therefrom, and spaced-apart point-blocks, which contact with the positioning-surfaces of the type-blocks, to determine the point size of the mould. The point-blocks 9, 10, Fig. 6, are formed integrally with a baseplate 2, and the type-blocks 5, 6 are L-shaped, and each contact with two adjacent surfaces of a point-block, the typeblocks being secured to the point-blocks by screws. The point-size can be diminished by grinding off the inner walls of the lugs 5<1>, 6<1> of the type-blocks, or the contacting faces of the point-blocks, and can be increased by grinding off the adjacent ends 8 of the typeblocks. The surfaces 9<11>, 10<11> of the point blocks serve as aligning-surfaces for the typeblocks. The type-blocks are cooled by water circulating through conduits therein. The point-blocks are not cooled, and their expansion tends to push apart the type-blocks, and to counteract the tendency of their casting-faces to move towards each other. The mouldblade 4, Fig. 1, is guided at its rear end by plates 15, 16, and is held down by plates 17, 19, secured to the point-blocks, and covered by top-plates 18, 20. Specifications 104,540 and 184,983, [both in Class 100 (iii)], also are referred to.
Patent GB-1434679-A (GB)
Title: Ion source especially for higher beam current intensity
IPC: H05H1/22
Filed: 1974-08-13
Abstract: 1434679 Ion sources K NOWAK 13 Aug 1974 [13 Aug 1973] 35920/74 Heading H1D An ion source, e.g. for ionizing deuterium from a source 16, comprises a thermionic cathode 1 and anode 2 producing a beam 4 of electrons which are deflected by a magnetic field 5 into a vessel 6 containing the gas to be ionized, the positive ions formed being accelerated by an electric field between the anode 7 and an electrode 8 so as to move in the opposite direction to the electrons and because of their relatively high mass are only slightly deflected by the magnetic field 5 and travel in a beam 14 to, for example, an acclerator 11. The vessel 6 can be supercooled by liquid helium in a jacket 18. The vessel 6 can be isolated from the rest of the apparatus by baffles 12 with excaping gas being recycled through a pump 13 and further evacuation takes place at 15. Electrode 3 can be an anode if positive or a constricting electrode if negative. The ion beam 14 is accelerated by an electrode 9 and constricted by a coil 10. The pressure in vessel 6 is typically 10-30 mm.Hg.
Patent GB-522525-A (GB)
Title: Improvements in or relating to electrical control of tuning means for wireless receiving apparatus
IPC: H03J5/14
Filed: 1938-12-12
Abstract: 522,525. Electric control systems. TELEFUNKEN GES. FUR DRAHTLOSE TELEGRAPHIE. Dec. 12, 1938, No. 36118. Convention date, Dec. 11, 1937. [Class 40 (i)] [Also in Groups XL and XXXVI] In a motor-driven automatic tuning system the motor M is coupled to the condenser shaft W on which is mounted a pulley L, a cable E moves the tuning-scale pointer Z which is mounted on a carriage F, slidably mounted on the bar S. The station-selecting mechanism comprises an endless band supported on rollers R1, R2, and coupled to the carriage F. The endless band consists of two metal sections B1, B2, connected by an insulating piece T and the insulating carriage F. A number of contacts K1, K2, etc., corresponding to the stations to be selected, engage the conducting band, and closure of one of the switches S1, S2, etc., which may be at a remote point, completes the circuit for the driving-motor M. The motor rotates in such a direction that the insulation piece T comes underneath the appropriate contact K and the motor stops. The direction of rotation of the motor is determined by the portion of the band, B1, B2, on which the contact K initially rests and thus the polarity of the voltage fed to the motor from the potentiometer P. To increase the accuracy of tuning the path of travel of the endless band may be increased by coupling the cable E to the pulley L through some form of reduction gearing. The contacts K comprise spring-loaded plungers and are slidably mounted between the rails U to obtain any particular station selection. The insulation piece T may be provided with a control depression to' engage the contact K and known systems of automatic fine tuning may be employed in conjunction with the motor-driven selection. Reference has been directed by the Comptroller to Specification 494,026, [Group XL].
Patent GB-1114655-A (GB)
Title: Improvements in convergent-divergent plug nozzle for aircraft jet engines
Inventor: FREEMAN DONALD SEBASTIAN
IPC: F02K1/08
Filed: 1966-08-12
Abstract: 1,114,655. Jet propulsion engines. GENERAL ELECTRIC CO. Aug. 12, 1966 [Dec.8, 1965], No.36140/66. Heading F1J. A jet propulsion engine nozzle comprises a convergent-divergent passage 46 formed by a central body 48 and an annular outer wall 50 which can be moved axially by actuators 24. Freely pivoted sets of peripherally spaced flaps 54, 56, 58 form an extension of the wall 50. The flaps are free to move in accordance with the difference between the jet forces exerted on their inner surfaces and the ambient air-forces exerted on their outer surfaces, whereby they tend to assume positions in which the forces are in equilibrium, whereby optimum jet thrust is obtained. Stops may be provided to limit the outer or inner movement of the flaps. The flaps may be interconnected so as to move in unison. The three sets of flaps 54, 56, 58 may be replaced by a single set of flaps. In the case of an engine provided with a reheat burner, a liner 36 may be provided, cooling air from, e. g. a by-pass duct being passed between the liner and the outer wall 50 to provide a cooling film over the inner surfaces of the flaps. Similarly, cooling air from an opening 44 can be passed over the surface of the central body 48. The engine may be of ducted fan type, with a splitter 53 dividing the outer fan flow and the inner exhaust flow.
Patent GB-1357336-A (GB)
Title: Manufacture of beryllium copper
IPC: C22C9/00
Filed: 1970-07-24
Abstract: 1357336 Making rods; continuous casting; improving physical properties TELCON METALS Ltd 26 July 1971 [24 July 1970] 36144/70 Headings B3A B3F and B3V Free-machining beryllium-copper alloy is made by preparing a melt of beryllium-copper containing an addition to impart free machinability, e.g. lead or tellurium, then continuously or semi-continuously casting a rod of the alloy and cold working the rod. In an example, 0À3% by weight of lead was included in the alloy cast at 1150‹ C and at 14 inches per minute The rod was then cold drawn by 50%, annealed at 780‹ C., cold drawn by 75%, again annealed at 780‹ C., followed by a further 75% reduction.
Patent GB-876717-A (GB)
Title: Reserpic acid esters and process for their manufacture
Filed: 1958-11-11
Abstract: The invention comprises alkyl reserpate esters of the general formula:-  <FORM:0876717/IV (b)/1> (wherein R1 is an alkyl group containing 1-5 carbon atoms, and R2 and R3 each represent a hydrogen atom or an alkyl group of 1-5 carbon atoms), salts of these compounds, and their preparation by esterifying a reserpic acid alkyl ester with a benzoic acid substituted in the meta position by a dialkylamino group, or a nitro, alkoxycarbonylamino, or benzyloxycarbonylamino group, or with a functional derivative thereof, and when the resulting diester contains a nitro, alkoxycarbonylamino or benzyloxycarbonylamino group the substituent is converted into the radical NR2R3.  Detailed examples illutrate the preparation of O-(31-dimethylaminobenzoyl) reserpic acid methyl ester (a) using 3-nitrobenzoyl chloride and reducing the intermediate 31-nitrobenzoyl ester in the presence of formaldehyde, (b) using 3-dimethylaminobenzoyl chloride, and of O-(31-aminobenzoyl) reserpic acid methyl ester by hydrogenation of the 31-nitrobenzoyl ester.
Patent GB-359272-A (GB)
Title: Improvements in or relating to the preparation of sodium bicarbonate
IPC: C01D7/18
Filed: 1930-12-02
Abstract: <PICT:0359272/III/1> Sodium bicarbonate is obtained by passing a fine cloud or spray of ammoniacal saturated common salt solution into a chamber free from baffles, internal constructions, or packing, in counter-current to a stream of carbon dioxide, the gas and liquid being brought into such intimate contact and for such time that sodium bicarbonate is precipitated from the solution.  The carbon dioxide may be employed under increased pressure.  Ammoniacal brine, containing if desired some previously introduced carbon dioxide enters the upper end of a chamber 2 through a spray nozzle or atomizer 1 and descends in counter-current to a stream of carbon dioxide introduced through dispersing pipes 3 provided with small holes or slits.  The unabsorbed gas escapes through an outlet 8.  A filter 4 retains the sodium bicarbonate crystals whilst the ammonium chloride solution collects in the funnel-shaped bottom 5.
Patent GB-333836-A (GB)
Title: A device for measuring liquids
IPC: G01F11/16
Filed: 1929-11-27
Abstract: 333,836. I. G. Farbenindustrie Akt.- Ges. Nov. 27, 1928, [Convention date]. Moving-chamber apparatus. - A measuring chamber is formed in a slide A moving over a plane surface and within a frame E which is reciprocated at the required speed from the shaft H. Supply and discharge passages C, D, open into the supporting surface.
Patent GB-786278-A (GB)
Title: An electric temperature control device
IPC: H01H37/52
Filed: 1954-12-15
Abstract: 786,278. Thermal switches. LICENTIA PATENT-VERWALTUNGS-GES. Dec. 15, 1954 [Dec. 15, 1953; April 6, 1954; Nov. 8, 1954], No. 36396/54. Class 38 (5). A switch comprises two heat-responsive twolayer strips, each of which is U-shaped with one strip arranged within the other which latter has one leg bent back to face one leg of the inner strip, the two facing ends being interconnected by a toggle member and being movable in opposite directions when heated or cooled so as to actuate contacts. As shown, the strips 1, 2 are clamped to a metal plate 20 which is in thermal contact with a nut 30 arranged to be placed in thermal contact with, e.g., the evaporator of a refrigerator. The free ends of the strips are interconnected by a U- shaped spring 8 and the inner strip 2 carries an insulating rod 25 acting on contact springs 26, although one of the strips may carry a contact co-operating with a spring-mounted contact. A cable 32 is received in a liquid-tight manner in grooves in a cover 21b and a base-plate 21a, which are secured together in a liquid-tight manner as by fusing together or by casting a material into a groove 33 between the rims of the cover and base-plate. A locking wire may be arranged in the groove, Fig. 2 (not shown). A heating coil controlled by a rheostat may surround one or both of the strips, or the strips may carry the heating current, as by a resistance material applied to the strips. Alternatively, a resistance 18 may be arranged in the casing adjacent the bends of the strips, either outside the bend as shown or inside, Fig. 4 (not shown). If a resistance 18 is used, the inner wall of the cover 21b may have a metal coating. The strips may be of bimetal or different insulating materials with different heat coefficients.
Patent GB-302176-A (GB)
Title: Improvements in processes for vulcanizing rubber and products obtained thereby
IPC: C08L61/22
Filed: 1927-10-05
Abstract: 302,176. Naugatuck Chemical Co., (Assignees of Cadwell, S. M.). Nov. 1, 1926, [Convention date]. Divided on 279,815. Aldehyde-amine condensation products. -An accelerator of vulcanization comprises a derivative of aldehydeamine condensation products obtained by boiling them with acids, the aldehyde being one having a plurality of carbon atoms in an open chain. In an example heptaldehyde aniline is shaken with 36 per cent hydrochloric acid, and boiled for 2¢-5¢ hours. The oily layer produced is washed several times with water which becomes discoloured. On heating the wash water with sodium hydroxide, the accelerator separates as an oil. Sulphuric acid may replace the hydrochloric acid in the above process. Other aldehydes or mixtures and other amines mav be used, and any suitable proportions may be employed.
Patent GB-871722-A (GB)
Title: A method of producing shaped bodies of ceramic material protective against ionising radiation
IPC: C04B35/622
Filed: 1957-11-22
Abstract: Bodies of ceramic material protective against ionizing radiation are obtained from a mixture of waste materials of lead processing plants and aqueous aluminium silicates in proportions that 6-9,5 moles PbO. R2O3 (R2O3 being oxides in the waste materials) correspond to 1 mole Al2O3 and to 2,0-2,8 moles SiO2, moulding and firing.  The bodies may be plates and be covered with a layer of glaze or a synthetic resin.
Patent GB-1277215-A (GB)
Title: Porous polyolefin sheet
IPC: C08J9/26
Filed: 1969-07-21
Abstract: 1277215 Porous polyolefine sheets LION FAT & OIL CO Ltd 21 July 1969 [22 July 1968 7 Sept 1968 2 Dec 1968 21 Dec 1968] 36590/69 Headings C3C and C3P A porous polyolefine sheet is made by forming a polyolefine resin sheet kneaded with 20-90% by wt. of calcium sulphate and/or sulphite, and soaking the sheet in an aqueous solution of hydrochloric and/or nitric acid to dissolve the sulphate and/or sulphite. The polyolefine may be polyethylene and may be compounded with a rubber, e.g. an ethylene/propylene rubber. The acid solution may also contain a cationic surfactant e.g. dodecyltrimethylammonium chloride. After being soaked in acid, the sheet may be contacted with an alkali solution e.g. aq. sodium hydroxide.
Patent GB-1451798-A (GB)
Title: Prostanoic acid derivatives
IPC: C07C405/00
Filed: 1973-08-02
Abstract: 1451798 Silylated prostaglandins IMPERIAL CHEMICAL INDUSTRIES Ltd 5 July 1974 [2 Aug 1973] 36691/73 Heading C3S [Also in Division C2] Methyl 16 - (3 - chlorophenoxy) - 11α,15α- dimethoxy - 9α - trimethylsilyloxy - 17,18,19,20- tetranor - 5 - cis, 13 - trans - prostadienoate, trimethylsilyl 16 - (3 - chlorophenoxyl. 15α- methoxy - 9α,11α - bis - trimethylsilyloxy- 17,18,19,20 - tetranor - 5 - cis, 13 - transprostadienoate and compounds of the Formula I wherein R<SP>1</SP> is 2,3,4,6-tetra-o-acetyl-α-D-glycopyranosyloxymethyl, methoxymethyl or butoxymethyl, R<SP>3</SP> is H, R<SP>3</SP>, R<SP>4</SP> and R<SP>6</SP> are trimethylsilyloxy, Y is O, R<SP>5</SP> is 3-chlorophenyl, X is cis-vinylene and A is trans-vinylene are prepared by silylating the corresponding compounds containing hydroxy and/or carboxy groups. Reference has been directed by the Comptroller to Specifications 1,324,737, 1,350,971, 1,372,541 and 1,386,146
Patent GB-426935-A (GB)
Title: Improvements in electric caps to stimulate the growth of the hair
IPC: A61N1/26
Filed: 1934-12-21
Abstract: 426,935. Electric treatment of the scalp. KON, M., 41, Boulevard Anspach, Brussels. Dec. 21, 1934, No. 36705. Convention date, Dec. 27, 1933. [Class 81 (ii)] An electric cap for stimulating the growth of the hair consists of a series of concentric metallic rings 1-8 each having a serrated edge, insulated from each other and connected together in a flexible manner to enable the cap to fit the skull, the rings being coupled to a source of low tension current 12. The rings are preferably formed from strips of aluminion, the ends of which are soldered together, and they are secured together and to strips of elastic insulating-material 10 by insulated wire passing through apertures 11. The rings are connected to the battery 12, alternate rings being preferably connected to opposite poles. The battery may be arranged at the centre of the cap or in a pocket and connected by a flexible conductor to the cap.
Patent GB-321094-A (GB)
Title: Improvements in or relating to therapeutical appliances
IPC: A61N5/10
Filed: 1928-12-12
Abstract: 321,094. Furst, W. Dec. 12, 1928. Radiations, treating diseases with. - Ray emitters, e.g. X-ray emitters, are arranged for therapeutic depth-treatment, either one above and one below a R÷ntgen table supporting the patient, or one ray emitting tube may be used and is positioned alternately above, and below the table. In each case, the tube, or tubes, is adjustable about vertical and horizontal axes and is also adjustable vertically and horizontally on its supporting stand. As shown in Fig. 1, the tubes 11 are carried, above and below the patient 20 on the table 21, on brackets 6 which are vertically adjustable on the stand 5 by screws 7 rotated by a handwheel 8 through clutches 9. The brackets 6 are horizontally adjustable by a handwheel 10, and the tubes are each revoluble on a horizontal pivot 12 and a vertical pivot 13. Scales 14, 15 are provided for reading angular displacements about these pivots, and scales 16, 17 give horizontal and vertical readings. An adjustable pointer 18 indicates the zero mark and the scale 17 is adjustable by a hand wheel 19 to correspond therewith. The scales permit the tubes to be set symmetrically with respect to the patient. In the modification where one tube is used, the stand 5 is lower and the table has telescopic legs. For radiation from above, the table is set low and for radiation from below, the legs are expanded and the table is raised to allow the tube to pass beneath it. The scale readings allow the radiation to be effected symmetrically relatively to the patient. Instead of a vertically adjustable table, two tables of different height may be used.
Patent GB-368201-A (GB)
Abstract: 368,201. Inductances. FELTEN & GUILLEAUME CARLSWERK AKT.-GES., Mulheim, Cologne, Germany. Sept. 4, 1931, No. 24864. Convention date, Oct. 4, 1930. [Class 37.] Sectionalized or multilayer inductance coils, particularly loading coils, have their inductances balanced by providing gaps between the winding sections, and winding into these gaps the transferred turns necessary to produce balance. The balancing windings may comprise layers insulated by paper. As shown, the winding sections b of a toroidal loading coil are separated by insulating discs c forming an air space into which the balancing turns are wound on the core a. In a modification, the core may be bored at the gap and a fine adjustment obtained by passing the transferred turn or turns through the bore thus reducing the winding surface.