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1. 发明专利

GB521801A Improvements in or relating to electric communication cables 未知
公开(公告)号：GB521801A
公开(公告)日：1940-05-31
申请号：GB3416738
申请日：1938-11-24
申请人： STANDARD TELEPHONES CABLES LTD , ERIC BAGULEY , JOHN RICKETTS VEZEY , RICHARD LESLIE HUGHES , DONALD PERCY DALZELL
IPC分类号： H01B11/14
摘要： 521,801. Loaded conductors. STANDARD TELEPHONES & CABLES, Ltd., BAGULEY, E., VEZEY, J. R., HUGHES., R. L. and DALZELL, D. P. Nov. 24, 1938, No. 34167. [Class 36] An electric communication cable includes a conductor with two or more layers of loading material applied helically and spaced apart from one another by non-magnetic and non-conducting material; the layers may have alternate directions of lay, or in a cable including a screened or unscreened pair or quad each conductor may have layers with the same direction of lay and in registration with one another. The inner layer may be similarly spaced from the conductor. The spacing material may comprise tapes of paper or other fibrous material which may be esterified or impregnated with polymerised material, or of cellulose acetate, polystyrene or other thermoplastic or organic insulating material ; alternatively, spacing may be effected by continuous layers of insulating material, such as polystyrene, which is sprayed, painted or extruded. Where such a loaded conductor is surrounded by a spaced co-axial outer conductor, the space between the outer layer of loading material and the outer conductor may be filled with thermoplastic insulation such as paragutta, or the conductors may be spaced by discs, helical spacers &c. of insulating material leaving air spaces. Specifications 457,280 and 521,712 are referred to.

2. 发明专利

GB398206A Improvements in or relating to coil loaded submarine signalling cables 未知
公开(公告)号：GB398206A
公开(公告)日：1933-09-08
申请号：GB696332
申请日：1932-03-08
申请人： STANDARD TELEPHONES CABLES LTD , THOMAS NIXON RILEY , RICHARD LESLIE HUGHES , REGINALD ALEXANDER LISTER COLE
IPC分类号： H02G15/14
摘要： 398,206. Coil-loaded submarine cables. STANDARD TELEPHONES & CABLES, Ltd., RILEY, T. N., HUGHES, R. L., and COLE, R. A. L., Connaught House, Aldwych, London. March 8, 1932, No. 6963. [Classes 36 and 37.] The coil boxes of a coil-loaded submarine. cable are formed with a diameter equal to that of the cable core, so that the lead sheath and armouring of the cable may extend continuously over the coil boxes. The boxes, which are preferably formed with two flat sides to allow room for the passage of the coil leads, may be connected together in chain form by spring links, rubber spacers through which the connecting links pass being disposed between adjacent boxes. The end boxes of the chain are secured to the cable by connection to a plurality of insulated wires which are laid up round the centre component of the cable and extend throughout the entire length thereof or, at least, for a sufficient distance to get an adequate friction grip. The coil boxes, which may be of metal and coated with hard rubber, are preferably shaped, as shown in Fig. 1, being adapted to fit within the cable sheath with their longer dimension along the cable axis and are formed in halves b secured together by bolting. A cavity 6 is formed in .each half to accommodate the loading coil which is secured therein with its axis perpendicular to the flat sides 12 of the box by rubber bushes inserted in' apertures 1 which are formed in the sides 12 and through which the coil leads pass. The contacting faces of the halves are formed with recesses 3 to receive the ends of the spring connecting-links which are retained therein by bolts passed through holes 4. These bolts also secure the two halves of the box together. In order that the chain of boxes may be uniformly rigid in all directions, consecutive boxes may be given a twist around the cable axis so as to lie in helical form. The direction of the helix may reverse at intervals. Fig. 4 shows boxes 7, 8, 9 arranged helically within a sheath 13 and spaced by skewed rubber blocks 10, 11. The boxes are connected together by spring links 14. The squads of the cable are connected to the coil by small-gauge textile- or paper-insulated wires which are laid up in groups in the helical space between the coil boxes and the cable sheath. The whole joint is then padded out to the cable diameter, dried, and sheathed together with the attached cable lengths. The unloaded lengths are also dried and sheathed and jointed to the loaded lengths, the whole then being stripped and lead-sheathed in a continuous length.

3. 发明专利

GB437293A Improvements in or relating to electric communication cables 未知
公开(公告)号：GB437293A
公开(公告)日：1935-10-28
申请号：GB1274734
申请日：1934-04-27
申请人： STANDARD TELEPHONES CABLES LTD , RICHARD LESLIE HUGHES
IPC分类号： H01B11/18
摘要： 437,293. Cables. STANDARD TELEPHONES & CABLES, Ltd., and HUGHES, R. L., 63, Aldwych, London. April 27, 1934, No. 12747. [Class 36] In a communication cable of the concentric return type, the return conductor is made of lead or lead alloy and has an internal diameter 5 to 5À6 times as great as the external diameter of the copper central conductor. The conductors may be spaced apart by washers or beads to provide air-space insulation, or the central conductor 1 may be wrapped with alternate layers 2, 3 of paper and string over which the lead return conductor 4 is extruded. The cable, when used for submarine purposes, may have armouring, consisting of wires 6 embedded in tarred jute 5, applied over the return conductor 4.

4. 发明专利

GB439808A Improvements in or relating to electric tests or measurements and apparatus therefor 未知
公开(公告)号：GB439808A
公开(公告)日：1935-12-16
申请号：GB1762434
申请日：1934-06-14
申请人： STANDARD TELEPHONES CABLES LTD , JOHN COLLARD , RICHARD LESLIE HUGHES , KENNETH ERIC LATIMER
IPC分类号： G01R27/18
摘要： 439,808. Inductance, capacitance, and resistance measurements. STANDARD TELEPHONES & CABLES, Ltd., COLLARD, J., HUGHES, R. L., and LATIMER, K. E., 63, Aldwych, London. June 14, 1934, No. 17624. [Class 37] The impedance of a portion of a circuit is measured without disconnecting it from the remainder of the circuit by supplying alternating current to the said portion and to an alternative circuit of known impedance inductively linked therewith, and comparing the effects in a detecting circuit inductively linked with both the other circuits. In the arrangement shown, for measuring the impedance to earth of apylon 3, an oscillator 11 is connected to the pylon and to an earth pin 1. A toroidal current transformer 4 carrying three windings 9, 9A and 10, is placed around one of the feet of the pylon. The windings 9, 9A have equal numbers of turns and are connected to the oscillator 11 through reversing switches 5, 6 and a variable resistance 7 or variable condenser 8, the other ends of the windings being connected to an earth pin 2. The reversing switches enable the phase of the current supplied to the windings to be altered through 180‹, the impedance to earth of the pylon being sometimes positive and sometimes negative. The winding 10 is connected to a detector 14, if necessary through an amplifier, and the resistance and capacity are adjusted until balance is obtained. In a modification, Fig. 2 (not shown), the winding 9A is dispensed with, and the variable resistance and condenser are connected in parallel to the winding 9 through transformers and reversing switches. In a further modification, Fig. 3 (not shown), the variable resistance is connected in series with the coil 9, and the variable condenser is connected, through a reversing switch, to the primary of a high impedance transformer, the secondary of which is connected in parallel with the coil 9.

5. 发明专利

GB368786A Submarine cable armouring 未知
公开(公告)号：GB368786A
公开(公告)日：1932-03-11
申请号：GB3736230
申请日：1930-12-11
申请人： STANDARD TELEPHONES CABLES LTD , RICHARD LESLIE HUGHES
IPC分类号： H01B7/22
摘要： 368,786. Cables. STANDARD TELEPHONES & CABLES, Ltd. and HUGHES, R. L., Columbia House, Aldwych, London. Dec. 11, 1930, No. 37362. [Class 36.] The armour wires of a submarine cable are individually served with hemp or other material which must be flexible, resistant to sea-water and occupy a large volume for its weight. An example given of such material is a thick coating of compound. A combination of fibrous and non-fibrous materials may be used. The armour wires are arranged in two or more layers of opposite lay, and a packing of hemp may be placed between inner and outer layers of armour. A hemp fabric may be applied to the armour wires, and may serve as a foundation for a rubber protective coating.

6. 发明专利

GB360933A Loading structure for an electric signalling conductor 未知
公开(公告)号：GB360933A
公开(公告)日：1931-11-10
申请号：GB2088630
申请日：1930-07-10
申请人： STANDARD TELEPHONES CABLES LTD , RICHARD LESLIE HUGHES , ERIC BAGULEY
IPC分类号： H01B11/14
摘要： 360,933. Wire ; metal tape. STANDARD TELEPHONES & CABLES, Ltd., HUGHES, R. L., and BAGULEY, E., Columbia House, Aldwych, London. July 10, 1930, No. 20886. [Class 83 (ii).] A loading tape or wire for a continuously-loaded cable comprises a core of high-resistivity material and an outer layer or layers of material of lower resistivity and higher permeability than the core. The layers may be insulated from one another. A core comprising a tape of an iron alloy containing 35 percent of nickel and small percentages of silicon or chromium may be sandwiched between two layers of a nickel-iron alloy heat-treated to develop a high permeability, the layers being continuously welded to the core and the composite tape thus formed being rolled down'to the requisite dimensions. In modified constructions, a layer of metal or alloy, which is subsequently heat-treated to develop a high permeability, is deposited on a high-resistance core, or a homogeneous tape may have its outer layer treated to alter its magnetic characteristics, the edges of the tape being trimmed to avoid oontinuity of the outer layer. For example, a nickel core may have iron diffused into its surface by cementation. In a further arrangement, a loading structure is formed as a unit of stranded wires, the innermost wire having higher resistance and lower permeability than the outer wires. The inner and outer wires may be of the same material, some of the strands being treated to change their characteristics, but preferably the wires are of different materials. The wires may be insulated from one another. Specifications 313,584, 329,700, [both in Class 36, Electricity, Conducting &c.], and 343,982 are referred to.

7. 发明专利

GB357228A Alternating current transmission systems 未知
公开(公告)号：GB357228A
公开(公告)日：1931-09-21
申请号：GB1870030
申请日：1930-06-19
申请人： STANDARD TELEPHONES CABLES LTD , EDWARD KENNETH SANDEMAN , RICHARD LESLIE HUGHES , PHILIP ROBERT THOMAS , CARLTON ROSSLYN DUNHAM
IPC分类号： H04B3/00
摘要： 357,228. Two-way repeaters. STANDARD TELEPHONES & CABLES, Ltd., SANDEMAN, E. K., HUGHES, R. L., THOMAS, P. R., and DUNHAM, C. R., Columbia House, Aldwych, London. June 19, 1930, No. 18700. [Class 40 (iv).] In systems in which an alternating current is periodically applied to a line, e.g. a courier current for controlling a repeater or a synchronizing current, means are provided for minimizing the transient effect at the moment of connecting up or disconnecting. For example the alternating current may be made to build up and die away gradually, e.g. by connecting it up through an impedance network or by using a valve oscillator or a valve amplifier and making them operative gradually by filament or grid bias control. In the system described in detail, which is for the transmission of a courier current in a repeater system, vibrating relays (which, however, may be replaced by pairs of valves acting as described in Specification 352,401, [Group XL]), for connecting up the alternating current at a suitable point in its cycle. As shown, Fig. 2, relays 3, 4, 5 are controlled by alternating current from 1A of the same frequency as that of the courier current from 1 or a submultiple thereof but in different phase as determined by the apparatus 6. Relay 3 may be replaced by a commutator. When speech arrives from the line L1 the quick-acting relay 76 which locks independently of the speech until the courier current has been sent, holds the A.C. relay 5 in whatever position it is in. The next half cycle brings relays 3, 4, to the same side with the result that alternating current from 1 is projected over L2, 4 remaining locked up in series with 5, the original circuit for which has been broken by 77. Shortly afterwards 84 pulls up and the next time 3 goes over to the same side as 4, 5, the above locking circuit is broken and the next half cycle drives 4 to the opposite side, terminating the courier impulse. In a modification, Fig. 3, in which the frequency of the current fed to the vibratory relays is a submultiple of that of the courier currents, the speech reponsive relay 76 locks the relay 5 as before and when the next half cycle brings 3 to the same side the courier impulse begins. The impulse is terminated when 3 moves over again 83 having meanwhile opened the start circuit.

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