baber/WOPTO huggingface dataset:
Patent GB-1496727-A (GB)
Title: Side bearing for railroad vehicles
IPC: B61F5/14
Filed: 1975-05-12
Abstract: 1496727 Elastomeric springs UNIROYAL Inc 12 May 1975 [10 May 1974] 19791/75 Heading F2S An elastomeric side support block for a railroad vehicle comprises a flanged base and an integral body 50 tapering away from the base, and a bearing surface 51 on the body 50 remote from the base and having symmetry about the axis of the body 50 and being generated by a curved line which is symmetrical about its own axis. The block may have a central bore 45, Fig. 5 (not shown) which may contain a metallic rod 47 which acts as a limit stop. The bearing surface may be in the form of a convex toroid Fig. 5 (not shown) and Fig. 6, or a concave toroid Figs. 7 and 9 (not shown). Suitable dimensions are given, also preferred ratios of the curve height, X or Y, to the body height Z, Fig. 9 (not shown). The material may be polyurethane, and suitable commercially available products are referred to; a hardness of at least 95 Shore A is preferred. Reduced internal strains are said to exist compared to the prior art, e.g. Figs. 2, 3 and 4 (not shown) and Figures are given graphically Figs. 9, 10 and 11 (not shown). Reference is made to USA Specification 3,628,464.
Patent GB-442285-A (GB)
Title: Improvements in and relating to electron discharge devices, and to circuit arrangements embodying such devices for the amplification of electric variations
IPC: H01J21/18
Filed: 1934-07-05
Abstract: 442,285. Thermionic valves; valve amplifying circuits. RODDA, S., 15, Osterley Park Road, Southall, Middlesex. July 5, 1934, No. 19825. [Classes 39 (i) and 40 (v)] In a magnetically-controlled electron-discharge device screens 4, 4<1> are interposed between the equipotential cathode 1 and the output electrodes 3, 3<1>; plate shields 5, 51 also are placed between the electrodes 3, 31 and the cathode to prevent direct electron flow between these electrodes. The input or control electrodes 2, 2<1> are shown concentric with the cathode but they may be obliquely placed or of a different radius of curvature to that shown. The electrodes 2, 2<1> and 3, 3<1> may be of mesh form and are at the same positive potential ; the screens at a positive potential lower than the first mentioned electrodes and the shields at or approximately at cathode potential. Without the magnetic field due to the solenoid 7, electron flow to the output electrodes is not possible ; the field gives the electron stream a spiral path and causes flow thereby through the mesh screens, but inhibits flow to the electrodes 2, 21. If the potential of the latter is maintained constant control of the output is effected by varying the magnetic field. Secondary emission from the screen 4, 4<1> to the electrodes 3, 3<1> when the potential of the former falls below that of the latter may be prevented by developing a space charge between the co-operating pairs of electrodes ; means as set out in Specification 423,932 may be used. As an alternative mesh electrodes at cathode potential may screen the electrodes 3, 3<1> from the screen 4. 4<1>. Two or more valves as described may be used in cascade.
Patent GB-754603-A (GB)
Title: Improvements in or relating to prestressed concrete roads
IPC: E01C7/16
Filed: 1954-07-07
Abstract: 754,603. Concrete pavements. PRELOAD CO., Inc. July 7, 1954 [July 9, 1953], No. 19898/54. Class 20(4). In concrete roads, runways, floors, &c., wedges placed transversely between long sections of the road subject the concrete to compressive stress which is periodically readjustable. Narrow wedges d are placed between long pavement sections with their points at the pavement edge, longitudinal compression being obtained by a hydraulic jack, &c., e which pushes the wedges apart, the prestress being retained by concrete filling #. The joint between wedge and concrete consists of two lubricated metal sheets with an interposed dowel which holds them at an equal height. Another arrangement provides a single wedge with its joint sheets extending beyond the pavement to a transverse beam which receives the thrust of the jacks. Automatic adjustment of the longitudinal prestress fasteners may be obtained by locating springs between a pair of wedges or between a single wedge and the corresponding external beam. At the end of and at intervals along a pavement section stationary supports are provided by running the concrete underground as an arched plate ; the anchorage length may be shortened by locating a heavy transverse beam at the starting point. At intermediate anchorages the concrete curves downwardly in both directions.
Patent GB-874123-A (GB)
Title: Electron tube sockets
IPC: H01R33/74
Filed: 1958-05-02
Abstract: 874,123. Caps and holders for thermionic valves. EITEL-McCULLOUGH Inc. May 2, 1958 [June 17, 1957], No. 19933/60. Drawings to Specification. Divided out of 874,122. Class 38 (1). The subject-matter of this Specification is substantially identical with that described in Specification 874,122 but the claims differ.
Patent GB-275608-A (GB)
Title: Improvements relating to rolling mills and particularly sheet metal rolling mills
IPC: B21B27/10
Filed: 1927-07-27
Abstract: 275,608. Vereinigte Stahlwerke Akt.- Ges., (Assignees of Schotteldreier, TV.). Aug. 7, 1926, [Convention date]. Electromagnets. - Portable electromagnets for preheating the rolls a of rolling-mills, by the generation therein of eddy currents or by hysteresis effects, are formed with laminated cores grouped in sections b separated by bronze bushes and secured together by bronze pins or bolts g. Either alternating-current with stationary rolls or continuous-current with rotating rolls may be used.
Patent GB-199730-A (GB)
Abstract: 199,730. Roger, G. C. June 26, 1922, [Convention date]. Void [Published under Sect. 91 of the Act]. Cords, attaching.-A machine for attaching cords &c. is provided with means for moving the cord from side to side of the stitch line between successive stitches. In an arrangement shown in Fig. 2, the cord is guided by a resilient arm h having a projection h<2> adapted to engage one of a set of pins on a toothed wheel j, or to project between two adjacent pins when the wheel is moved one step by the engagement therewith of a spring pawl k on the needle bar, thus effecting alternate movement of the guide eye g to one side or the other of the line of stitching. In the modification shown in Fig. 12, the eye q is carried by a plate r reciprocated in grooved bars s by a shuttleshaped cam o pivoted on the needle bar and engaging in a cam-slot q in the plate r of the form shown. The tension of the attached cord d exceeds that of the sewing thread so that the cord d is pulled straight and the sewing thread given a zig-zag form, as shown in Fig. 5, and this may also cause a wrinkling of the edge of the work and curvature of the material such as the upper of a boot.
Patent GB-1497370-A (GB)
Title: Process of extrusion-coating the central core with an insulator of high pressure-processed polyethylene
IPC: B29C48/06
Filed: 1976-05-14
Abstract: 1497370 Cooling extruded cable insulation UBE INDUSTRIES Inc 14 May 1976 [6 Jan 1976] 20017/76 Heading B5A [Also in Division H1] A submarine coaxial cable comprises steel tensioning wires 2; an inner conductor 3 of a coated copper layer; an extruded insulating layer 4 of high pressure produced polyethylene of density of 0À925 to 0À940 gm/cm<SP>3</SP> and melt index of 0À01 to 0À3 gm/10 min; an outer conductor 5 of a wrapped thin copper plate; and a jacket 6 of medium or low pressure produced polyethylene. The polyethylene of layer 4 is preferably of 0À926 to 0À935 density, and 0À1 to 0À25 melt index. The cable is used at sea bed depths of not less than 500 metres and transmits alternating current signals with a maximum frequency of not less than 30 MHz, and has a transmission capacity of not less than 3,000 circuits, each of a frequency band of 3 to 6 KHz. The transmission characteristics result from a dielectric loss tangent of the layer 4, of 35 to 60 Î 10<SP>-6</SP>, which is obtained by coating the layer 4 issuing from an extrusion die 13 around the wires 2 and conductor 3, to room temperature during its passage through a plurality of water cooling troughs 15, 16, under conditions which minimize the water content of the polyethylene, and also minimize the formation of voids between the layers 4 and 3. The polyethylene of the insulating layer 4 preferably has a melting point of 110 to 130 C., and issues from the die at 170 to 200 C., and preferably 175 to 195 C. Cooling is effected in two stages by the respective troughs 15, 16, the first stage comprising a passage of 10 to 30 minutes through one to three, or five troughs 15 containing water at 80 to 100 C., and preferably 85 to 98 C., and which is lower than the melting point of the polyethylene by 10 to 30 C., and with succeeding troughs, being at 3 to 10 C. lower than the trough upstream thereof. The second stage 16 comprises a passage of 50 to 170 minutes through two to ten, and preferably four to seven troughs, with each trough being at a lower temperature than the trough upstream thereof by 3 to 30 C., and preferably 5 to 25 C. The examples relate to polyethylene of density of 0À929 and melt index of 0À2, and density of 0À932 and melt index of 0À2, with test results being given for water content, dielectric loss tangent, void presence, and gripping strength on the core.
Patent GB-678485-A (GB)
Title: Improvements in centrifugal pumps
IPC: F04D29/14
Filed: 1950-08-11
Abstract: 678,485. Centrifugal pumps; stuffing-box substitutes. WILFLEY & SONS, Inc., A. R. Aug. 11, 1950 [Sept. 28, 1949], No. 20041/50. Classes 110(i) and 122(v) A centrifugal pump casing comprises intake and discharge shells 14 and 15 respectively, fastened to opposite faces of an annular member 12 which is integral with a baseplate 11. The shell 15 is fastened in place by bolts 18 which are spaced 90 degrees apart, permitting the discharge neck 15a to be arranged in the alternative positions shown dotted in Fig. 3. The fastening screws 19 for the shell 14 are spaced 45 degrees apart, to permit the intake neck 14a to take up the alternative positions shown dotted in Fig. 4. Seal rings are provided at diameters S<SP>1</SP> and S<SP>2</SP> between an intermediate annular member 16 and the shells 15 and 14 respectively. The hub of the impeller 30 is extended to form a sealing impeller having blades B. The pump is in other respects similar to that described in Specification 682,015. Specification 432,838 also is referred to.
Patent GB-596937-A (GB)
Title: Improvements in sinks
IPC: E03C1/26
Filed: 1945-08-07
Abstract: 596,937. Strainers for sink outlets. WELCH, S. V. Aug. 7, 1945, No. 20154. [Class 26] A sink comprises a well 2 in its floor 1 to receive a strainer basket 11 resting in the metal inset 8, one or the other of which may be fitted with rubber for better fitting. A removable lid 9, with its perimeter substantially flush with the floor 1, has a hole in the centre fitted with a removable stopper 10, which hole may be of the same size as the vent-hole 3 in the well 2.
Patent GB-148261-A (GB)
Title: Improvements in disc ball bearings
IPC: F16C19/54
Filed: 1920-07-09
Abstract: 148,261. Schweinfurter Prõcisions- Kugel - Lager - Werke, Fichtel & Sachs. Dec. 10, 1917, [Convention date]. Ball bearings.-To produce a uniform distribution of axial load in a bearing comprising several co-axial ball bearings, the balls 7 are adapted to adjust themselves radially along the grooves of the race-disks 11, 12 under the influence of centrifugal force. The balls are uniformly distributed and guided by a ring 5 provided with radial arms 6 which space the balls while permitting their outward movement. The ring 5 is mounted on a ball bearing 8 and mav be in one or more parts. Three forms of the projections 6 are shown.
Patent GB-1555364-A (GB)
Title: Electronic circuit packaging arrangement and method
IPC: G04G5/00
Filed: 1976-05-17
Abstract: CIRCUIT DEVICE PACKAGING TECHNIQUE The package of a circuit device such as an integrated semiconductor circuit device is molded into a special shape to fit its function.  The package includes leads extending from the circuit device to selected positions for interconnection both inside and outside the volume of the package such as for switch points or attachment of other electrical components to the circuit device.  Support members or cavities are simultaneously molded directly into the package for the mechanical support of the other electrical, magnetic, optical or optoelectronic components.  Also, optical elements such as lenses or filters may be molded directly into the package to carry out optical functions.
Patent GB-1076509-A (GB)
Title: Improvements in and relating to the cutting of metals
Inventor: EVANS DAVID CHARLES
IPC: F23D14/54
Filed: 1966-05-06
Abstract: 1,076,509. Blowpipe burners. IWATANI & CO. Ltd. May 6, 1966, No. 20210/66. Heading F4T. An oxygen blowpipe nozzle for cutting metals has a sonic zone 1, a bottleneck 2 through which oxygen passes into a divergent acceleration zone 3 where it attains supersonic speed and an extension 4, extending beyond the level at which heating gas orifices 6 discharge and in which extension the oxygen is divided into a supersonic jet and a subsonic jet surrounding it. The extension 4 is of heat-resisting material such as a ceramic.
Patent GB-992561-A (GB)
Title: Process for dyeing polyolefins
IPC: D06P3/79
Filed: 1963-05-21
Abstract: Monoazo benzothiazole or benzoxazole dyes of the formula <FORM:0992561/C4-C5/1> wherein X is O or S, B is an aromatic or heterocyclic residue having the -OH group in ortho position to the azo linkage and free from strongly ionized groups, R is H or a non-water-solubilizing substituent and n is 1 or 2, may be prepared by diazotizing a 2-amino-benzothiazole or -benzoxazole and coupling and are used to dye polypropylene containing a Werner-complex-forming metal.  A number of dyes are specified. Specification 992,562 is referred to.ALSO:Solid polymers of a -olefins having 2-3 carbon atoms containing a Werner-complex-forming metal are dyed with an aqueous dispersion of a water-insoluble benzothiazole or benzoxazole monoazo dyestuff which contains at least one group capable of forming a metal chelate with said metal.  The specified metals are Ni, Cr, Co, Zn, Ti, Al, Fe, Cu, Zr, Mn, Cd and V; they may be in the form of compounds some of which are referred to.  Suitable dyestuffs have the general formula <FORM:0992561/D1-D2/1> wherein X is 0 or 5, B is an aromatic or heterocyclic residue having the hydroxyl group in the ortho position to the azo linkage and is free from strongly ionized groups, e.g. -SO3H groups, R is hydrogen, alkyl, alkoxy, halogen, trifluoromethyl, nitro, cyano, amino, acylamino, alkylamino, alkylsulphonyl, sulphonyl, carbonyl or carbalkoxy and n is 1 or 2. Dyeing is preferably carried out from an acid bath, e.g. at a pH below 5. The dyebath may contain anionic, cationic or especially nonionic surfactants.  Examples of dyeing isotactic polypropylene fibres containing 0.06 and 0.12% nickel are given.  Specification 992,562 is referred to.
Patent GB-742472-A (GB)
Title: Improvements in or relating to conveyors for the cooling and drying of articles and like operations
IPC: F26B15/04
Filed: 1952-08-12
Abstract: 742,472. Refrigerants. CHEATLE, A. W., and KELSEY INDUSTRIES, Ltd. Aug. 12, 1953 [Aug. 12, 1952], No. 20271/52. Class 29. [Also in Group XXX] Articles are conveyed through a cooling chamber 27 by a series of concentric rings 8 driven independently of each other and a fixed spiral guide 10 which deflects them from the outermost to the innermost ring. A fan 23 directs air on to a deflector 24 from which it passes between cooling coils 29 to the space below the rings 8. It then passes upwardly between the rings and is returned to the fan by a deflector 28.
Patent GB-335936-A (GB)
Title: Electrical system for communicating with moving vehicles
IPC: H04B5/00
Filed: 1929-07-03
Abstract: 335,936. Standard Telephones & Cables, Ltd., (Western Electric Co., Inc.). July 3, 1929. Inductive signalling. - In an inductive high frequency signalling system between a moving vehicle and a line L series inductances 1, 2 are provided to sectionalize the line as regards currents passing longitudinally over the line wires in parallel with earth return and means are provided to apply the longitudinal currents to the line as a metallic circuit, such as the translating device 3. The translating device may additionally include an amplifier, a filter and a demodulator to reduce the frequency. Fig. 3 shows a system in which the longitudinal currents after translation are applied to a second circuit so that different trains in different sections may be signalled. The demodulator 7 may be switched on by a train entering the section in conjunction with the automatic train control or the signal currents may be applied to rectifier 19, Fig. 5, and operate relay 10. Fig. 6 shows a modified arrangement of the line sectionalizing means by which reflection losses may be obviated comprising a low pass filter 12 bridged by a high pass filter 13, the mid point of the coils 14 of which is grounded through an impedance 16.
Patent GB-138851-A (GB)
Title: Improvements in valves
IPC: F16K11/16
Filed: 1919-08-19
Abstract: 138,851. Ravaz, E., and Pillon, A. Feb. 8, 1919, [Convention date]. Piston and tubular valves; locking; regulating rate of flow.-Relates to valves for domestic and other purposes of the type comprising a piston or tubular valve member, such as 4, Fig. 2, sliding within a seat-ring 7 having flanges to retain in position cup-leather packings 4. In such valves the flow takes place through holes in the valve 4 and corresponding holes between the flanges of the seat-ring. In the present arrangement the valve is opened by the action of an abutment 3 operating on an inclined cam-surface or ramp 5. The tubular valve described above can be adapted for used as a multiple way valve. Fig. 4 shows a multiple-way arrangement employing two valve members 4', 4<2>, one having a disk 20 thereon engaging a slotted projection 21 from the other so hat both partake of the same longitudinal movement. The rotary actuating-movement of the valve 4' can be arrested in any one of three positions by a spring-pressed ball engaging notches in the edge of the disk 20. In the position shown, water flows from the inlet " Ar " through the valve 4<1> and intermediate chamber 18 and thence through the second valve 4<2> to the delivery S. A further inward movement first closes the valve 4<1>, followed by an opening of the valve 4<2> for the return flow from the delivery S to the discharge port t. The chamber 18 may be fitted with an interchangeable ported-disk throttling device.
Patent GB-1482875-A (GB)
Title: Fuel element for gas-cooled nuclear reactor
IPC: G21C3/34
Filed: 1975-05-14
Abstract: 1482875 Fuel elements KRAFTWERK UNION AG 14 May 1975 [15 May 1974] 20455/75 Heading G6C A fuel element for a gas-cooled nuclear reactor comprises a plurality of fuel rods having metal casing tubes, and a spacer grid holding the fuel rods at desired spacings from one another, the webs of the grid and the casing tubes presenting co-operating rigid abutment surfaces and at least one of each pair of co-operating surfaces being roughened or interrupted. Fig. 2 shows a cross-section through a square spacer mesh in which a fuel rod 2 is centred and supported by means of guide dogs 22 on the fuel rod casing tube being guided laterally by two projections 32 on the mesh web 3 so that radial expansion of the fuel rod 2 is made possible. In Fig. 3 (not shown), each dog is guided only by a single projection on the mesh web. The surfaces of the projections 32 are roughened or fluted as that they cannot become jammed against or welded to the adjacent guide dogs 22. Fig, 6 shows a cross-section through an hexagonal spacer mesh in which a fuel rod 25  is centred and supported by projections 31 extending inwards from the mesh web 3 and directly contacting the casing tube 21 of the fuel rod 2. The projections 31 may be provided at their end faces with transverse grooves. Bores corresponding to the mesh grid may first be formed in a solid plate and provided with a screwthread, after which the plate material is partly removed by spark erosion so that the hexagonal webs are left standing with the projections 31 extending inwardly from them. Other manufacturing methods may be used, e.g. the roughening at the end or side faces of the projections may be effected by spark erosion.
Patent GB-1125034-A (GB)
Title: Improvements in or relating to relay systems
IPC: H04Q3/54
Filed: 1967-05-03
Abstract: 1,125,034. Automatic exchange systems. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 3 May, 1967 [6 May, 1966], No. 20468/67. Heading H4K. A relay switching matrix, e.g. of reed relays, is controlled by marking wires M1, M2, one for each row, and pairs of control wires such as U1, V1, a pair for each column, contained in common apparatus SS, and each relay is associated with four rectifiers in the manner shown. To energize a particular relay, e.g. K11, the column wire U1 is closed and the row wire M1 is opened, the circuit being between U1 and V1. The relay locks independently of U1, and a further holding circuit is made when M1 closes again. Thus the opening of both V1 and M1 is necessary in order to release the relay.
Patent GB-386969-A (GB)
Title: Improvements in and relating to the purification of sulphur or sulphur bearing material
IPC: C01B17/033
Filed: 1931-07-17
Abstract: <PICT:0386969/III/1> The purification of crude sulphur, or of sulphur containing materials such as spent oxide, from contaminating tarry or similar organic materials is effected by washing with a saturated solution of sulphur in carbon bisulphide.  Preferably, the saturated solution is obtained by treating a portion of the crude sulphur with the solvent.  In the apparatus shown, a carbon bisulphide tank 5 is connected by a pipe 8 to a series of crude sulphur extractors 1-4, tarry solution passing to a still 6 by a pipe line 9 and sulphur solution by a pipe line 10 to a still 7. Valved pipes 11 connect adjacent extractors.  Carbon bisulphide is first fed from the tank 5 to the extractor 1 where it dissolves sulphur and tar.  So long as the tar is present in considerable quantity, the solution is led to the still 6 but when the tar content decreases, the still 6 is disconnected and the solution is fed to the top of the extractor 2 from which it passes to the still 6 till the tar content reaches the lower limit.  Meanwhile, when the solution leaving the extractor 1 is free from tar, the solution is diverted from the extractor 2 to the still 7 and is resumed to the extractor 2 after the content of sulphur falls below the economical limit.  When the extractor 1 is completely exhausted, it is disconnected from the extractor 2, drained, steamed, cleaned and refilled, the carbon bisulphide from the tank 5 being diverted to the extractor 2.  The procedure is repeated with regard to the extractors 3, 4 and may be made cyclic by increasing the number of extractors and connecting the first and the last.  During the washing step, the flow is slow but may be rapid during extraction.  Specification 314,697, [Class 90, Non-metallic elements], is referred to.