baber/WOPTO huggingface dataset:
Patent GB-1501207-A (GB)
Title: Hearth connections for direct current arc furnaces
IPC: F27B3/08
Filed: 1975-05-14
Abstract: 1501207 Arc furnace ASEA AB 14 May 1975 [19 June 1974 19 Dec 1974] 20269/75 Heading H5H The hearth connection of a D.C. arc furnace comprises at least one electrode in the form of an iron or steel rod 6 which is in communication with the furnace space and is embedded in lining compound 7 which is surrounded by an externally cooled metal casing 8 which in use ensures that the end of the electrode 6 in contact with the furnace melt is molten whilst the terminal end 10 is solid. As shown, the hearth connection is removably secured to the furnace vessel so that a branched channel 12 in which the electrodes 6 extend communicates with the furnace melt through a channel 4 extending between the outer shell 1 and inner surface 3 through lining compound 2. A water cooled frame (not shown) between the hearth connection and the furnace shell prevents the furnace lining from sintering to the hearth connection. A funnel shaped expansion space 11 of the channel 12 enables slag from the furnace melt to be skimmed off. The hearth casing 8 is cooled by water cylinders or coils. Cooling cylinder or linings 9 are cast into the lining compound. The hearth electrode may be connected directly to a nozzle opening at the furnace bottom thus obviating the need for a connecting channel and expansion space. In Fig. 3 (not shown) the hearth connection is formed integrally with the furnace, the rod electrode(s) being curved to extend vertically along one side of the furnace vessel and terminate at the melt level of the furnace vessel. Water cooled members surround the casing of the hearth connection and temperature measuring points are provided along the length of the rod electrode to control the temperature of molten metal in the hearth connection. In Fig. 4 (not shown) the solid terminal end of the rod is of larger cross-sectional area than the inner molten end so that the inner end, because of its higher resistance will be preferentially heated. The cross-sectional area may be reduced stepwise or continuously from the outer to the inner end.
Patent GB-1116200-A (GB)
Title: Improvements in gas cooled dynamoelectric machines
IPC: H02K3/24
Filed: 1967-05-02
Abstract: 1,116,200. Cooling dynamo electric machines. GENERAL ELECTRIC CO. 2 May, 1967 [4 May, 1966], No. 20284/67. Heading H2A. In a gas-cooled dynamoelectric machine, e.g. turbo-generator, wherein the gas, e.g. hydrogen flow is produced or enhanced by gap pick-up action of the rotor 4, gas inlet and outlet passages 11, 12 communicate with the air gap 10 through rotor peripheral surfaces which are of larger diameter at the outlet passages 12 than at the inlet passages 11 so that the flow is increased by centrifugal action. The inlet passages 11 are scoop-like and grouped in zones opposite laminated stator core inlet ducts 5a, the gas passes through passages in the rotor conductors arranged in a diagonal geometry, and the outlet passages 12, grouped in zones opposite stator outlet ducts 5b, comprise T-shaped discharge extension members (14), Fig. 3 (not shown), keyed axially to slot wedge pieces 15 and circumferentially to non-magnetic supporting rings 13.
Patent GB-1509506-A (GB)
Title: Apparatus for and method of directing the tail of a web between first and second mechanical means
IPC: B29C43/22
Filed: 1976-05-17
Abstract: 1509506 Web threading devices CROWN ZELLERBACH CORP 17 May 1976 [27 May 1975 31 March 1976] 20294/76 Heading B8R A web threading device 10, Fig. 1, comprises a channel having a base wall 26 and side walls 28, the wall 26 being subdivided by a straight portion 38 and curved portion 42 into two portions each of which is provided at the leading end with a Coanda nozzle 68, 68<SP>1</SP>, to provide a flow of air along the base wall 26 and entrain a broken web 20 to the nip of rollers 16, 18. Each Coanda nozzle is formed by an aerofoil section whose leading end forms a narrow slit 78 with a wall 66, Fig. 2. The trailing end of the section abuts the portion 38. Air is supplied to the slit 78 from a plenum chamber 70 connected to a source of compressed air. The base wall may be composed of a number of sections articulated to one another for direction of the web tail to a required location (Fig. 11).
Patent GB-531122-A (GB)
Title: Electrodynamic oscillation damper
IPC: B63H23/34
Filed: 1939-07-12
Abstract: 531,122. Vibration dampers. ALLMANNA SVENSKA ELEKTRISKA AKTIEBOLAGET. July 12, 1939, No. 20315. Convention date, July 19, 1938. [Class 108 (iii)] A device for damping torsional or angular oscillatory vibrations in shafts &c. comprises an armature 30 rigidly bolted &c. to the end 1 of the shaft and furnished with coils 34 mounted on a ring of teeth 31. Around the armature 30 is disposed a magnetic pole carrier 4 capable of a slight limited angular movement about the armature 30. The coils 34 are connected by ring and brush contacts 36 to a capacitative load circuit comprising a condenser 5, and optionally a transformer 6, a resistance 7 and an ammeter 8. The poles 42 of the carrier 4 may have coils 43 which connect by brushes and rings 35 to a source of current. Small teeth 32 may be introduced between adjacent coils 34, and a recess 37 may be formed in each of two teeth 31 at opposite ends of a diameter to accommodate a projection 38 of rubber &c. These projections form a positive abutment limiting the angular displacement between the armature 30 and carrier 4, and assist one or more light springs 46, or elastic bearing rings 45, connecting these two members. Alternatively, the armature 30 and carrier 4 may be rotatably free of one another, the carrier 4 being driven only by a torque as in an asynchronous motor.
Patent GB-1486717-A (GB)
Title: Film transport
IPC: G03B17/04
Filed: 1975-05-14
Abstract: 1486717 Film transport OPTISCHE INDUSTRIE DE OUDE DELFT NV 14 May 1975 [20 May 1974] 20368/75 Heading G2A Predetermined lengths of film are fed from a supply station to an exposure station and then to a collecting receptacle, all the feeding means being intermittently driven from a single motor which is run at a constant speed, in such a way that the number of film lengths being exposed in a given time can be varied by varying the intermittent periods in which the motor is operatively associated with the feeding means. As shown, the lowermost film length is separated from a stack in a supply cassette 36, fed to an exposure window 59, and then on to a collecting cassette 102. All operations are controlled from a main shaft 2 which is driven from a motor 97. The shaft is coupled to the motor by a clutch arrangement indicated generally at 107, which can be controlled to operate for a single revolution only. Disposed at various positions along shaft 2 are a number of cam discs 5, 6, 7, 8, 9. Cam 5 operates an arrangement, seen in more detail in Fig. 2 (not shown), in which a pair of pivoting arms 12, 13 co-operate to grip and detach the lowermost of a stack of films in cassette 36. A hook 33 at the end of an arm 32 engages behind the film length. The arm is attached to a block 27 which is moved axially by engagement with a cam groove 25 in another cam 6, so that the detached film is pulled along by the hook until it passes out of the cassette through an opening 37 to engage between upper rollers 52 and lower rollers 61. These rollers move towards and away from each other by the pivoting movement of a mounting frame 48 under the action of the sloping face of a further cam 7. As they grip the length of film, this is shot across the exposure window to abut against a stop 77 forming part of a plate member 75, so that it is now located in the exposure position. A frame 71 is moved upward by a further cam 8, to hold the film firmly in position for exposure. When this is completed, a further cam 9 draws member 75, and hence stop 77, out of the path of the film, and another pair of rollers 84, 89 engage the film and transport it through an opening 101 into the collecting cassette 102. As a result of the single rotation clutch arrangement, the total time of transport from supply cassette to collecting cassette is constant, and when the number of film lengths transported per second is reduced, by suitable choice of cam shapes, then the residence time of the film in the exposure station is increased.
Patent GB-580516-A (GB)
Title: Improvements in bedding stones
IPC: H01R43/14
Filed: 1944-10-20
Abstract: A stone, from which a mild and finely-divided scouring-powder such as flint, pumice, quartz sand, or calcined kyanite is readily released at the contact surfaces between the commutator and brushes of electric machines to bed the parts without any substantial abrasion of the metal either during or after detachment, is formed by bonding the powder with a relatively small amount, e.g., five per cent., of a thermosetting synthetic resin or with a thermoplastic material which will not soften or melt during use.  The powder is mixed with a solution of the binder, the solvent is completely or partially removed, the mass is finely pulverized, pressed to shape, and heated to about 200 DEG  C. to remove any residual solvent and, if necessary, to harden the binder.  Phenol-formaldehyde resin, with methylated spirit as solvent, and cellulose acetate without plasticizers, are specified as thermosetting and thermoplastic binders respectively.ALSO:A stone from which a mild and finely-divided scouring powder such as flint, pumice, quartz sand, or calcined kyanite is readily released at the contact-surfaces between the commutator and brushes of electric machines to bed the parts without any substantial abrasion of the metal either during or after detachment, is formed by bonding the powder with a relatively small amount, e.g., 5 per cent., of a thermosetting synthetic resin or with a thermoplastic material which will not soften or melt during use. The powder is mixed with a solution of the binder, the solvent is completely or partially removed, the mass is finely pulverized, pressed to shape, and heated to about 200 DEG C. to remove any residual solvent and, if necessary, to harden the binder. Phenol-formaldehyde resin, with methylated spirit as solvent, and cellulose acetate without plasticizers, are specified as thermosetting and thermoplastic binders respectively.
Patent GB-1308524-A (GB)
Title: Method and apparatus for producing wood wool
IPC: B27G13/08
Filed: 1970-04-28
Abstract: 1308524 Producing wood wool BAU-UND FORSCHUNGSGEESLLSCHAFT THERMOFORM AG 28 April 1970 [29 April 1969] 20399/70 Heading B5L A method of producing wood wool 3 comprises slicing successive sheets 41 from a block of wood 5, allowing the sheets to drop on to a supporting surface, moving the supporting surface so that the sheets are deposited thereon in superimposed staggered relationship like fish scales, and are moved by said motion towards a wool cutting station, and continually cutting wood wool from the superimposed sheets at said station. In a machine described for performing the method, wood blocks 5 are fed vertically downwards by toothed rollers 9 on to the upper face of a rotary planning tool 11 having a plurality of angularly spaced cutter blades. Sheets 41 cut from the blocks by the blades fall on to an inclined endless conveyer 37 travelling at such a speed that the sheets lie in superposed staggered relationship. The sheets are maintained in this relationship by an endless belt 39 until they reach the wool cutting station which comprises a fixed blade 63 and a rotary drum cutter 58. Ribbons cut by the cutter 58 fall on to a convey 71. The drum cutter 58 may be replaced by a disc cutter similar to tool 11 or a vertically reciprocated blade. The conveyer 37 may comprise a plurality of endless belts, and a pair of orbiting fingers may pass between the belts to accurately locate the sheets 41 thereon. The tool 11 may include passages through which air may be passed to urge the cut sheets 41 down on to the conveyer 37.
Patent GB-721628-A (GB)
Title: Metal centrifugal casting mould and method of producing the same
IPC: B22D13/10
Filed: 1952-08-13
Abstract: 721,628. Centrifugal casting - machines. EISENWERKE GELSENKIRCHEN AKT.- GES. Aug. 13, 1952 [Aug. 13, 1951; Aug. 14, 1951; Sept. 6, 1951; Dec. 28, 1951; May 2, 1952], No. 20408/52. Classes 83 (1) and 83 (2). Fine inter-crossing grooves, e.g. 1a, Fig. 1, and 3, Fig. 3, are formed in the inner surface of a metal centrifugal casting mould, some at least of the grooves extending obliquely relative to both the longitudinal direction 1 of the mould and the direction at right-angles thereto. The shapes bounded by the grooves 3 may be divided by other, preferably finer, grooves 4. The grooves 15, Fig. 7, are formed on a flat strip 14 which is then helically wound into the mould, the winding of the strip causing the grooves to close to leave only narrow slots on the inner surface. Alternatively the grooves may be formed in rings which are stacked and clamped in the mould. The closing of the grooves to leave only small slots, which may be effected also in the cases where the grooves are formed in the mould wall direct, is stated to relieve stresses during heating and cooling and reduce the danger of the mould cracking. Before the closing of the grooves, which may be effected by pressure, a material, such as a metal of different heat conductivity from that of the mould, may be placed in the grooves. Additional grooves 11, substantially parallel to the mould axis in the case of smaller diameter tube moulds, Fig. 5, and peripheral for larger diameter moulds, Fig. 6 (not shown), preferably deeper and spaced farther apart than the fine oblique grooves, are formed at particularly stressed parts, e.g. at the point of transition between the socket and stem, to prevent the formation of cracks. The grooving may be effected by turning or knurling. It is stated to be known to provide small ribs in metal centrifugal casting moulds, or to roughen the interior by sand or shot-blasting or by corroding the smooth surface.
Patent GB-531215-A (GB)
Title: Improvements in the manufacture of multiply tubing
IPC: B21C37/09
Filed: 1939-07-14
Abstract: 531,215. Metal tubes ; bending, forging and soldering metals. GENERAL MOTORS CORPORATION. July 14, 1939, No. 20527. Convention date, Aug. 5, 1938. [Class 99 (ii)] [Also in Group XXII] A double-walled metal tube comprises two strips each of which forms part of the inner and outer walls of the tube. Each strip is bent to form an inner semi-cylindrical part T<SP>1</SP>, Fig. 35, and an outer semi-cylindrical part T<SP>2</SP> joined by an offset portion T<SP>3</SP> against which the bevelled edges T<SP>4</SP> of the other strip are pressed. The strips are taken from supply reels through a degreasing chamber, an oiling device, nine guides and nine pairs of rollers alternately arranged, two further pairs of compacting rollers and a rotary swaging machine. The tube is then passed through a bath of copper at 2100‹ F. in a reducing atmosphere, the excess copper being removed by a gas jet. The outer sides of the overlapping strips P<SP>1</SP>, P<SP>2</SP> are oiled by wicks 104, Fig. 2A held against them by spring-urged plungers 110. The first guide comprises plates A', A<SP>2</SP> having grooves for the reception of the strips and an intermediate plate A<SP>3</SP> clamped between base plates 201 having grooves for wedges 205 which engage inclined shoulders on the plates A<SP>1</SP>, A<SP>2</SP>. The overlap of the strips is adjusted by the wedges and the plates and wedges are then clamped bv bolts 213, 215, 217. The first rollers give the strips the form shown in Fig. 8, subsequent guides being of channel form to suit the changing form of the strips which are progressively changed by the next three pairs of rollers to the form shown in Fig. 17. The mandrel M which extends from the next guide E, Fig. 1C, to the end of the machine projects from the guide and is clamped between the parts E<SP>1</SP>, E<SP>4</SP>. The strip P<SP>2</SP> is bent over the mandrel in the next three pairs of rollers and the strip P<SP>1</SP> is bent over the strip P<SP>1</SP> by the next three pairs, the tube being drawn through the machine by the eleventh pair of rollers. The rotary swaging machine comprises a shaft 136 supported by tapered roller bearings 134 in a casing 130. The head 150 of the shaft has a diametral recess housing a pair of dies 161 and a pair of hammers 160. Rollers 170 in a cage 171 secured to the casing surround the head 150 and engage the interior of a wheel 180. The shaft and wheel are rotated in opposite directions at speeds such that the peripheral speeds of the interior of the wheel and the exterior of the hammers are equal.
Patent GB-1282843-A (GB)
Title: Data detection chain
IPC: G08C19/00
Filed: 1971-04-19
Abstract: 1282843 Underwater transducer systems NORDDEUTSCHE SEEKABELWERKE AG 19 April 1971 [17 Feb 1970] 20533/71 Heading G1N In a system comprising a plurality of underwater transducer units, power to the units and signals from the units are fed to and from a shore station by inductive coupling between each unit and a cable. The cable may have one or more conductors, and may incorporate amplifiers for the measuring signal.
Patent GB-651960-A (GB)
Title: Improvements in or relating to electric multipling cables
IPC: H01B7/08
Filed: 1948-11-05
Abstract: 651,960. Multipling cable. SIEMENS BROS. & CO., Ltd., GEE, F. J., and FORD, W. J. Nov. 5, 1948, No. 20545/50. Divided out of 651,950. [Class 36] A flat strip multipling cable is formed into a circular cable after the last group 2 of contact loops 5 has been made, by bending the wires along an edge 3 of the next group 4 without making contact loops, and then increasing their lay as at 6 and forming the wires into a circular cable 7. If one or more pairs of wires are transposed in the flat portion of the cable these are continued as twisted pairs throughout the length of the cable. Adhesive tapes may be applied to each side of the flat part of the cable and continued as a longitudinal wrapping about the circular part, or they may be terminated where the cable becomes circular a helically applied adhesive tape being used to enclose this part of the cable. Specifications 624,]61 and 651,950 are referred to.
Patent GB-320149-A (GB)
Title: Improvements in air or the like compressors
IPC: F04B39/08
Filed: 1928-07-16
Abstract: 320,149. Bullock, F. July 16, 1928. Compound piston pumps.-Air is admitted to the closed crank case 11 by a port 15 controlled by a valve 17 operated by direct connection with the crank through a slotted arm 21, and is transferred through a passage 14 to inlet ports 10 controlled by the piston. Additional atmospheric inlet ports 5 are provided. The valve 17 may be conical, or a rotary disc valve operated by the crank pin may be employed in its place.
Patent GB-1432982-A (GB)
Title: Toy guns
IPC: A63H33/18
Filed: 1973-05-01
Abstract: 1432982 Toy guns METTOY CO Ltd 24 April 1974 [1 May 1973] 20660/73 Heading A6S A toy projectile firing gun comprises a diecast housing 10, simulating, for example, the turret of a tank and which is mountable for rotation about a vertical axis. A breech block section 16 pivots about a horizontal axis on trunnions 17 and has a barrel section 19 slidably mounted therein, the outer end of which has a portion 20 for receiving a misslie 30. The inner end of the barrel 19 is formed with a collar 21 which limits outward movement of the barrel, Fig. 1. A spring 22 bears at one end on the collar 21 and at the other end on a latch 23 which is pivotally mounted on a transverse bar 24 fast with the breech block section 16. The latch 23 is formed with a barb 25 for co-operation with the collar 21, Fig. 2. A trigger 27, slidably mounted in the housing 10 has a curved surface 29 for engagement with a protuberance 26 on the latch 23, the curve being in the form of a part-circular arc having its centre on the pivotal axis of the trunnions. In a second embodiment Figs. 6. 7 the trigger 27<1> is slidable vertically, offset from the axis of the barrel, Fig. 7, and its lower end extends downwardly and forwardly around the adjacent trunnion 17 and engages a lateral extension 23a of the latch 23, Fig. 7. In each of the described embodiments the parts of the firing mechanism are concealed or disguised, and the gun can be fired in any position of elevational adjustment.
Patent GB-1210488-A (GB)
Title: A wire mesh mat for use in tunnels
IPC: E21D11/15
Filed: 1969-04-23
Abstract: 1,210,488. Metallic fabric. BECKER-PRU- .NTE G.m.b.H. 23-April, 1969 [7 May, 1968], No. 20801/69. Heading D1K. A wire mesh comprises interconnected longitudinal and transverse rods 4, 5 in which the spacing of the ends of associated pairs of longitudinal rods is different at either end 4c, 4d. The ends of the longitudinal rods are bent to form hooks. The end spacings allow mats to be overlapped over a support beam 2 to form a roadway. The hooks at end 4c engage the top of the beam and are connected by a continuous rod 12. The hooks 4d, which are connected by short rods 8, engage the top of the beam when the mat is stressed. Further stressing bends the hooks until rods 8, 12 engage.
Patent GB-153319-A (GB)
Title: Improvements in and relating to thermionic tube relay arrangements
IPC: H03F3/28
Filed: 1920-07-12
Abstract: 153,319. Latour, M. Sept. 27, 1915, [Convention date]. Thermionic relays. -In a thermionie relay suitable for the amplification of speech currents an alternating current f<1> is directly applied to the anode filament circuit of a duplex valve to furnish the anode potentials, and the interfering note is extinguished in the telephones. Currents f<2> to be amplified are applied to the grids, and the telephone placed in a circuit coupled, by a transformer B, to part of an inductance AA shunted across the two anodes. The transformer B is provided with an auxiliary winding a, arranged in opposition to the other winding connected across the anodes, so that by adjustment of the rheostat R, the effect of the current of frequency f<1> is neutralized in the telephone circuit.
Patent GB-744940-A (GB)
Title: Improvements in and relating to oxidation colouring matters
Inventor: LANTZ ROBERT LAZARE
IPC: D06P1/32
Filed: 1953-07-29
Abstract: Oxidation dyestuffs are formed on textile fibres by the oxidation thereon of sodium-N4-phenyl-1 : 4-diaminobenzene-N1-sulphonate by means of the chlorate of a metal of the second group of the periodic classification, the atomic weight of which is less than that of strontium.  The reaction is preferably initiated and effected in the presence of an acid-forming substance and an oxidation catalyst.  The reactants are applied as a solution or printing paste.  In examples, prints on cotton or viscose rayon fabrics are obtained by applying an aqueous composition containing the above sulphonate, calcium or magnesium chlorate, ammonium chloride, ammonium vanadate, ammonia and starch-tragacanth thickener, the fabric then being steamed with neutral steam, washed and boiled in soap solution.  Specification 744,939 is referred to.
Patent GB-836811-A (GB)
Title: Shaped medicament carriers and process for their manufacture
Filed: 1956-07-06
Abstract: Shaped medicament carriers for rectal and/or vaginal application are prepared by subjecting a solution or suspension of a solid lyophile non-toxic carrier substance or substances and the desired active substance to freezing into a shape suitable for rectal and/or vaginal application and subsequent freeze drying. As the solid lyophile substance, primarily high molecular substances are used which are sol or gel-forming in water. Suitable materials are gelatine, natural or synthetic mucilages, polyethylene oxides and derivatives thereof, carbohydrates and derivatives thereof, e.g. starch, dextrin, glucose, lactose, saccharose, and silicon and aluminium compounds such as silicic acid and aluminium hydroxide.  Filling materials, wetting and preserving agents may also be added to the compositions. Medicaments given in the examples are phenylcyclohexyloxyacetic aciddiethylaminoethyl ester brommethylate, a -phenyl-a -ethyl glutaric acid imide, 5-chloro-7-iodo-8-hydroxyquinoline and 2-sulphanilamidothiazal formaldehyde condensation product.