baber/WOPTO huggingface dataset:
Patent FI-956023-A (FI)
Inventor: CALL HANS-PETER
IPC: D06L4/40
Filed: 1995-12-14
Abstract: PCT No. PCT/EP94/01966 Sec. 371 Date Nov. 7, 1996 Sec. 102(e) Date Nov. 7, 1996 PCT Filed Jun. 16, 1994 PCT Pub. No. WO94/29510 PCT Pub. Date Dec. 22, 1994A process for modifying, breaking down or bleaching lignin, material containing lignin or like substances uses oxidation catalysts and suitable oxidizing agents wherein these catalysts are used in combination with aliphatic, cycloaliphatic, hetercyclic or aromatic compounds containing NO, NOH or (A).
Patent FI-962673-A (FI)
Inventor: LEPPAELAHTI KAI
IPC: H04R1/10
Filed: 1996-06-28
Abstract: The present invention relates to a fixing assembly for a helmet headset which comprises a body piece (13), a microphone (14) attached to said body piece (13), an earphone (17) attached to said body piece, and cabling (13, 11) for taking signals to said earphone (17) and from said microphone (14). According to the invention, an elongated tongue piece (19) is attached to said body piece (13), and said body piece (13) includes at least two hole perforations (20) with a width equal to that of the tongue piece. <IMAGE>
Patent FI-982543-A (FI)
Inventor: KIRJAVAINEN KARI
IPC: G01L1/16
Filed: 1998-11-24
Abstract: Transmitter arrangement and method for determination of the magnitude and/or point of attack of the force or the pressure acting on a transmitter, comprising a transmitter and a control unit 18 connected to it for determination of the magnitude and/or the point of attack of the force or the pressure acting on the transmitter by means of the signals from the transmitter, and which transmitter is provided with essentially membrane-shaped grounding electrodes 13 and at least one plastic membrane 11 of bubble structure arranged between them. The transmitter is provided with at least one signal electrode 12 arranged between the membrane-shaped grounding electrodes. The control unit comprises a sending unit 16 operating within the microwave range which sends signals in the microwave range to the signal electrode 12 of the transmitter, and a receiving unit 17 which receives the signals reflected from the signal electrode, which control unit determines the magnitude and/or the point of attack of the force or the pressure acting on the transmitter by means of the signals measured in the receiving unit, for example, by means of their changes in amplitude, phase, and/or transit time. <IMAGE>
Patent GB-240051-A (GB)
Title: The manufacture of quinoline-4-aldehyde and its 2-position aryl derivatives
IPC: C07D215/12
Filed: 1925-01-13
Abstract: Quinoline-4-aldehyde and its 2-aryl derivatives are obtained by oxidation of the corresponding 4-acrylic acid in alkali solution in the presence of a solvent not miscible with water.  The products possess therapeutic properties.  Examples are given of the production of quinoline-4-aldehyde and of 2-phenylquinoline-4-aldehyde by treatment of quinoline-4-acrylic acid and 2-phenylquinoline-4-acrylic acid respectively in sodium carbonate solution with potassium permanganate, the ice-cooled mixture being covered with a layer of benzene.  2-Phenylquinoline-4-acrylic acid is prepared by saponifying the product obtained by heating 2-phenyl-4-methylquinoline with chloral.
Patent GB-152558-A (GB)
Title: Improvements in or relating to the manufacture of metal discs
IPC: B21H1/02
Filed: 1920-01-13
Abstract: 152,558. Michelin et Cie. Oct. 28, 1919, [Convention date]. Rolling wheels and disks.-Tapered metal disks for automobile wheels or for other uses are rolled between taper rolls a, b and the wheel-blank c is so supported, as by a lever e, that at the beginning of the rolling the centre of the blank is out of the plane of the axes of the rolls. As the rolling proceeds, the blank is drawn inwards until its centre is in that plane. A slide or other means may replace the lever e.
Patent GB-389946-A (GB)
Title: Method of striking and maintenance of an electric arc in a medium having a great dielectric strength
IPC: H05B7/00
Filed: 1932-01-14
Abstract: 389,946. Supply systems for arcs. SOC. L'AIR LIQUIDE, SOC. ANON. POUR L'ETUDE ET L'EXPLOITATION DES PROCEDES G. CLAUDE, 48, Rue St. Lazare, Paris. Jan. 14, 1932, No. 1163. Convention date, Jan. 17, 1931, [Class 38 (iv).] A low-frequency arc 1 in a medium of high dielectric strength, such as a liquid hydrocarbon, is ignited and maintained by an auxiliary circuit having a condenser 9 and spark gap, which circuit is fed by an alternator 7 with a frequency exceeding 200 cycles and preferably between 500 and 1000 cycles. The spark gap 11, which periodically short circuits the secondary of the transformer 8, is preferably rotary and is driven from the auxiliary alternator and provided with means for phase adjustment. The high-frequency impulses produced by the spark gap are choked by a reactance 17 and byepassed from the main source 4 by a condenser 18 and by a protective circuit comprising a resistance 19 and spark gap 20. The rotary spark gap and condenser may be enclosed in an earthed metal box 10, and the cable 14 conveying the condenser discharges to the arc electrode is enclosed in a metal tube included in the earth connection. A fan 21 may be used to renew the atmosphere in the case.
Patent GB-1128162-A (GB)
Title: Improvements in or relating to lasers
Inventor: HARRIS KEITH DILLON
IPC: H01S3/08
Filed: 1965-01-11
Abstract: 1,128,162. Lasers. G. & E. BRADLEY Ltd. 4 Jan., 1966 [11 Jan., 1965], No. 1212/65. Heading H1C. A laser has its resonant cavity defined by a pair of symmetrical corner prisms 12, 16, each prism having its light-transmitting front face inclined to the axis of stimulated emission 11 by an angle α corresponding to the complement of the Brewster angle. A gaseous laser is shown in which the output is obtained through a prism 18 adjacent corner prism 16 by the process of frustrated total internal reflection. Alternatively the output may comprise the residual reflection from the front face of one of the corner prisms. A liquid active medium could be used.
Patent GB-584649-A (GB)
Title: Reciprocating piston pump for concrete and other plastic materials
IPC: F04B15/02
Filed: 1945-01-16
Abstract: 584,649. Stuffing-box substitutes. LONGENECKER, C. I. Jan. 16, 1945, No. 1312. [Classes 122 (i) and 122 (v)] [Also in Groups XXVIII and XXIX] Each of a set of packing rings between a housing lining 33, Fig. 6, and end elements 41, 42 of a plug 40 of an oscillatory valve for use with a concrete pump (see Group XXVIII) comprises a metallic annulus 65 with oppositely bevelled ends against which abut rawhide rings 66 of triangular cross-section. The outer rawhide ring is engaged by a spring-pressed gland 69. The valve is actuated by cam actuated levers 110 which transmit motion to an arm 55 through a yieldable connecting rod comprising a housing 125 to a flange 126, Fig. 10, of which is removable secured a thimble 130 in which slides a member 131 carrying a rod 133 extending along the housing. The rod is surrounded by a helical compression spring 135 confined between a pair of sleeves 136, 137 and is of such strength that under normal load it resists compression but should the valve become blocked and the member 131 immovable the spring compresses and allows continued reciprocation of the housing 125 and the thimble 130. Specification 469,148 is referred to.
Patent GB-1420181-A (GB)
Title: Electrical machine controls
Filed: 1973-01-10
Abstract: 1420181 Automatic speed-control VSESOJUZNY NAUCHNO-ISSLEDOVATELSKY INSTITUT ELEKTROENERGETIKI 10 Jan 1973 1331/73 Heading G3R [Also in Division H2]  An asynchronized-synchronous machine operated as a motor or generator has supplied to its rotor 37, voltage signals derived from rotor voltage control arrangement, 47, E, T as a disclosed algebraic function of stator voltage (from transformer 48), rotor current (from transducer 39), instantaneous rotor/stator phase displacement, (derived in unit T from rotor signals originating from synchronous tachogenerator 44 and stator signals from transformer 48), the machine characteristics, and the slip, (derived in unit T), the rotor voltage increasing with the slip. The in-phase component of rotor reaction on the stator has a governed level, the quadrature component being dependent on the slip. The machine may be constrained to operate at a slip specified by reference signal from source 47, or, under control of a reference signal derived from tacho 44 via integrator 45, the slip may vary. The stability of the system under shock changes of loading is stated to be improved. As a variable speed generator, the arrangement is suitable for tidal, or storage powerplants. The rotor voltage is provided via controlled rotor supply 38, itself supplied either by alternator 42 or transformer 41. Transformer 48 is connected to the mains for motor duty, or to reference supply 50 for generator duty, unit 43 being a load; e.g. a fan, pump, grinder or compressor; or a prime mover, such as a turbine, respectively. The control system may utilize, for a two, or three phase rotor, D.C. control signals, Figs. 18, 21 (not shown), A.L. signals at rotor frequency, Figs. 19, 22 (not shown), or signals at mains or stator frequency, Fig. 20 (not shown), and contains subunits, Fig. 13 (not shown) to derive the slip and M,N,L, Figs. 15, 16, 14 (not shown) to realise the disclosed algebraic relations, containing inverting operational amplifiers (9) and multiplication units (21). The r¶les of stator and rotor may be reversed. The machine is similar in construction to a wound rotor induction motor.
Patent GB-384462-A (GB)
Title: Improvements in vacuum cleaners
IPC: A47L9/14
Filed: 1932-01-18
Abstract: 384,462. Paper bags. MARSHALL, M., 159, East Hastings Street, Vancouver, Canada. Jan. 18, 1932, No. 1433. Convention date, Jan. 17, 1931. [Class 94 (ii).] A paper bag, for insertion in the fabric bag of a vacuum cleaner, has a reinforced neck 8, secured beneath the clamp which holds the fabric bag, and an aperture closed by a fabric insertion 9, the latter being provided with a pocket 10 for holding a cake of disinfectant. For use with an openended fabric bag 12 the paper bag is made longer than the fabric bag and its protruding ends are folded over and secured by a clip 11.
Patent GB-230954-A (GB)
Title: Improvements in apparatus for dyeing and scouring yarn and other fibres
IPC: D06B3/08
Filed: 1924-01-19
Abstract: 230,954. Hunt & Moscrop, Ltd., and Boardman, J. Jan. 19,1924. Circulating or passing materials through fluids and fluid-applying apparatus. - In apparatus for dyeing and scouring yarn &c. the material is passed through the liquor in the tank A on an endless band F or tapes passing between top and bottom rotating rollers B', B, which are so disposed that the axis of each of the top rollers, except one end one, lies in a plane midway between the axes of two of the bottom rollers. The bearings C of the spring- controlled bottom rollers B are mounted in guides D in frames attached to the side of the tank whilst the bearings c<1> of th etop rollers B<1> are formed in frames E fitted within the tank, the end rollers being mounted in bearings e in such a way that by releasing one end roller the frames E and rollers B<1> can be raised and rotated about the other end roller. In a machine in which the rows of rollers are not arranged horizontally for the whole length of the rows, additional rollers B<2> of smaller diameter may be provided in the bottom row as shown.
Patent GB-452366-A (GB)
Title: Improvements in and relating to aircraft with autorotative wings
IPC: B64C27/02
Filed: 1935-01-16
Abstract: 452,366. Aircraft with rotary-wing systems. LA CIERVA, J. DE, Bush House, Aldwych, London. Jan. 16, 1935, No. 1548. [Class 4] In aircraft of the gyroplane type having a rotor-starting transmission from power plant to rotor including clutch means and having means for varying the mean pitch angle of the rotor blades, the sustaining rotor blades have a, non-uniform cross-sectional profile such that a relatively small part of the blade has a stable pitching moment characteristic and the remainder of the blade has an unstable pitching moment characteristic, the parts having relatively stable and unstable pitching moment characteristics being so relatively positioned and proportioned and having pitching characteristics so related that the overall pitching characteristic of the blade is substantially neutral. The tip portion of the blade may have an aerofoil section of greater aerodynamic efficiency than the rest of the blade. Fig. 1 shows a blade b of uniform chord having a uniform aerofoil section of the "unstable" type, such as shown in Fig. 2, which has an unstable pitching moment characteristic whilst the portion of the blade between section lines 3-3 and the tip is of the "stable" type shown in Fig. 3. The two sections may be blended into one another or there may be an abrupt transition giving the blade a stepped appearance. In a modification Fig. 5, a blade b<1> of uniform chord and profile is provided at the tip with a flap or tab f which is tilted slightly upwards so as to give this portion of the blade a stable characteristic. Specifications 264,965, [Class 4], 452,364, and 452,36.5, are referred to. The invention is stated to be particularly applicable to gyroplanes adapted to take-off in the manner described in Specification 420,322.
Patent GB-650060-A (GB)
Title: Improvements in reciprocating plunger pumps
IPC: F04B49/16
Filed: 1948-01-19
Abstract: 650,060. Reciprocating puinps. PATTERSON, W. Jan. 19, 1948, No. 1566. [Class 102(i)] The delivery of a pump operating at constant stroke is varied by means of a diaphragm b mounted in the pumping chamber a and supported by a piston c loaded by a spring f. The inward stroke of the piston is limited by a collar e engaging an adjustable stop i. In a modification, the inward stroke of the diaphragm is limited by a perforated grid in the pumping chamber and the outward stroke is limited by an adjustable stop. In the construction shown in Fig. 5, the piston c is located. some distance from the diaphragm b and is connected by a pipe o, the whole space being filled with an incompressible fluid.
Patent GB-228330-A (GB)
Title: Improvements in rheostats
IPC: H01C10/32
Filed: 1924-01-19
Abstract: 228,330. Sterling Telephone & Electric Co., Ltd., Miller, T. D. Ward-, and Holbeach, W. M. Jan. 19, 1924. Variable resistances; wire resistances, cored. -A variable resistance for filament control in thermionic valves and for other purposes is provided with a detachable resistance element which may be replaced by one of a different value, and may have a stop limiting the motion of the, switch arm but which is itself adjustable by a separate handle. In the construction shown in Fig. 1, the resistance is wound on a straight cylindrical core adapted to engage spring clips 2 on a bracket 1 having a boss 3 in which is mounted the stem 4 carrying the switch arm 6 and operating-knob 5. The core may be moulded with a thread to receive the winding, flats being formed at the junction of the halves of the mould. A pin 7 projecting through a slot in the boss 3 prevents longitudinal displacement of the stem and may limit its rotation. Ears 8 on the bracket 1 may alternatively limit the rotation of the switch arm 6. Alternatively the spring clips may be carried by the resistance element, or plug-and-socket or other fastenings may be employed. In a modification, Fig. 4, the bracket 12 carrying the switch stem 14, switch arm 17, and operating-knob 16 has three dependent ears 13 engaging an insulating base 23 by bayonet-joints. The resistance element, consisting of a wire 21 wound on an annular core 22, is mounted on the base. 23. A stop 20, limiting the rotation of the switch stem 17 is carried by a spindle 18 passing through the hollow switch stem 14 and bearing an adjusting-knob 19. The lower edge of the stop 20 engages one of a series of notches in an annular rib 25 on the base 23. By pulling up the knob 19 against the action of a spring 27 the stop 20 can be released and rotated to engage another notch. Alternatively the central spindle mav carry the switch arm and the stop may be, carried by a sleeve having a projecting pin which engages one of a series of notches on the upper edge of the bush 15.
Patent GB-1138628-A (GB)
Title: A method of making a printed circuit
Inventor: POHL KARL-HEINZ
IPC: H05K3/04
Filed: 1966-01-13
Abstract: 1,138,628. Laminated printed circuit. WESTERN ELECTRIC CO. Inc. 13 Jan., 1966 [14 Jan., 1965], No. 1600/66. Heading B5N. [Also in Division H1] In a method of making a printed circuit, a metallic layer is formed on a plastics insulating material, and parts of the metallic layer and adjacent plastics material are perpendicularly displaced relative to the remainder. The metallic layer may comprise aluminium (which may be copper-coated), copper, beryllium copper, phosphor bronze, or stainless steel, and the plastics material may comprise polyethylene, polypropylene, acetal plastics, or polycarbonates. A metal-plastics laminate may be prepared by the method disclosed in Specification 1,092,716. The laminate, together with appropriate die-plate(s), is inserted in a mechanical or hydraulic press, which is actuated to shear the metallic layer and deform the underlying plastics material; alternatively, an engraved roller assembly is used. Single- or double-sided circuit boards may be produced, and holes may be punched in the boards to receive component leads. In an example, two Al plates are cleaned, grit-blasted, etched, rinsed, and dried, after which they are assembled on each side of a cleaned polyethylene sheet and inserted between caul plates in a heated hydraulic press and pressed. After cooling, the resultant laminate is again pressed and heated to iron wrinkles from the skin.
Patent GB-370076-A (GB)
Title: Improvements in or relating to drums or reels for flexible tubing
IPC: B65H75/38
Filed: 1931-01-17
Abstract: 370,076. Hose reels. PALIN, J., Deco Engineering Works, West Row. North Kensington, London. Jan. 17, 1931, No. 1626. [Class 99 (ii).] A hose reel, comprising endplates 1, 2 and a barrel 3 connected by tie-bolts 4, is rotatably mounted upon a stationary shaft 7 supported by the side plates 8, 9 of a stand, and fluid is supplied to the hose through a central passage 7a in the said shaft, terminating in a lateral outlet 7b, and a coupling in the form of a sleeve 22 disposed upon the shaft and having a branch union 26 for connection to the inlet end 19a of the hose and an internal annular groove 23 in communication with the outlet 7b. The ends of the sleeve 22 are fitted with stuffing, boxes 22a, 22b, and the sleeve is maintained in its proper position and caused to rotate with the drum by a metal plate 30 fitting over an extension 25 thereof and connected by bolts 32, 32a to a plate 33 secured within the drum by the tie-bolts 4. A spiral spring 14 may be disposed within the drum for automatically rewinding the hose after use, the inner end of the spring being secured to a boss 15 fixed on the shaft 7 by a key 15a and the outer end to a tube 16 mounted upon one of the tie-bolts 4. Alternatively a weight, electric, or other motor is associated with the reel for rotating it in a backward direction.
Patent GB-1078636-A (GB)
Title: Improvements in or relating to articles of office furniture and tables
IPC: A47B47/00
Filed: 1966-01-13
Abstract: 1,078,636. Office desks. SOCIETE CIVILE DE RECHERCHES ET D'ETUDES INDUSTRIELLES. Jan. 13, 1966 [Aug. 23, 1965], No. 1721/66. Heading A4H. An office desk comprises a top secured to two metal frames (3) of inverted U-shape forming legs and a cabinet (2) secured to each pair of legs. Two intermediate U-shaped frames (6) are also secured to the top and trays (8, 9) are anchored to the frames at sufficient spacing to permit insertion of the cabinets 2. The upper trays may be spaced from the top.
Patent GB-475234-A (GB)
Title: Direction indicator for cycles and motor cycles
IPC: B62J6/00
Filed: 1937-01-21
Abstract: 475,234. Road -traffic signals on vehicles. FOGED, H. CHRISTOFFERSEN-. Jan. 21, 1937, No. 1793. [Class 118 (ii)] A direction - indicator comprises a pair of lamps flexibly mounted on a carriage which can be moved to expose a lamp at either end of the casing in which the carriage is housed. The casing may be the handle-bar of a cycle or a separate tube attached to the handle-bar. The carriage 4, mounted in the tube 1 on balls 14, carries lamps 7 which are connected with the carriage by flexible joints 13. The carriage is moved by cord 16 which passes around pulleys 17 and 22, the pulley 17 being moved by the toothed edge 20 of handle 21 which co-operates with sprocke 19. Movement of the carriage is limited b projection 15 contacting with stops 15a an 15b whilst the lamps are lit automatically in their exposed positions when springs 5 contact with the exposed portions 9 of bus-bar 10.
Patent GB-249627-A (GB)
Title: Improvements in means for controlling the speed of a film in cinematographic apparatus and the like
IPC: G03B21/48
Filed: 1925-01-20
Abstract: 249,627. Poulsen, A., and Petersen, A. C. G. Jan. 20, 1925. Ribbon and tape machines.-The speed of the film in kinematograph, sound-recording, and like apparatus is controlled by means of a flywheel coupled to a roller driven by the film and by a resiliently-held member between the driven roller and a driving roller. As shown, a film 1 is drawn through a gate 10 by a sprocket 3, and passes over and drives a rough-surfaced roller 2 connected to a flywheel 4. A roller 8 carried by a pivoted arm 9 is pressed against the film by a spring 11 so as to form a loop. Sudden variation in the speed of the sprocket 3 causes the loop to shorten or lengthen, until, under the action of the spring 11, the speed variation is transmitted to the flywheel 4. Rubber covered rollers 5 bearing partly on the surface of the roller 2 and on the edges of the film are carried on a pivoted arm 6 controlled by a spring 7.
Patent GB-1404924-A (GB)
Title: Inner seal for rotary piston engines and a method of manufacturing  it
IPC: F02F5/00
Filed: 1974-01-15
Abstract: 1404924 Making seals for Wankel engines AUDI NSU AUTO UNION AG and WANKEL GmbH 15 Jan 1974 [17 Jan 1973] 1802/74 Heading B3A [Also in Division F1] In a method of making a scraper ring for a rotary piston a cast-iron blank 1 is heated within an annular zone 3, or 12, by, e.g. a gasprotected electric arc, an electron beam or a laser beam until molten, the zone is chilled rapidly to form a leduburitic structure and the blank is machined to reduce the cross-section as indicated by broken lines 6, 7; 9, 7; or 13, to produce a scraping edge 8, or 14. Alternatively, the ring is formed by centrifugal casting and chilled while in the mould to create the leduburitic structure. A martensitic structure is obtained in the region adjoining the said zone. A grey cast-iron with a low phosphorus and sulphur content is preferred.
Patent GB-864473-A (GB)
Title: Alkylene diboronic acids
Inventor: GOLDSCHMID HEINRICH RUDOLF
IPC: C07F5/02
Filed: 1959-01-19
Abstract: The invention comprises polymethylene diboronic acids of the formula: (HO)2B(CH2)nB(OH)2 where n is an integer not less than 4 and preferably not greater than 10.  The novel compounds may be made by reacting a borate ester in solution with a Grignard or lithium reagent formed from a straight chain a , w-dihalo-alkane having not less than four carbon atoms and hydrolysing the reaction product. Any butyl or lower alkyl borate ester may be used.  The temperature is kept low, for example below -70 DEG C.  The product is hydrolysed under acid conditions, e.g. in the presence of sulphuric acid. Examples describe the preparation of tetra-, penta-, hexa-, and decamethylene diboronic acids.