Back to results
US 3,938,902 AGranted
Connecting device for wires
AssigneeNone recorded
InventorJuan Coll Morell
Life of this patent
Estimating the term…
Loading patent…
Loading patent…
AssigneeNone recorded
InventorJuan Coll Morell
Estimating the term…
For connecting together two wires which are to be placed under tension in series connection, a connector has a rigid body pierced by two substantially parallel bores. The wires are passed through the bores and anchored against the tension at opposite ends of the body by suitable anchoring means. The lengths which are to be tensioned extend through the bores. Where a wire has ruptured under tension, the broken ends can be respectively connected to two such connectors, which are themselves joined by a supplementary length of wire. Tension can then be re-applied.
Connecting device for two wires which are to be placed under tension in series connection, having a rigid block which has two opposite ends and two substantially parallel bores extending from one end to the other to receive the wires, and two anchoring means respectively associated with the bores adapted to anchor the tensioned lengths of the wires respectively at the opposite ends of the block against the applied tension when the said tensioned lengths extend through the bores, the anchoring means comprising wedges received in tapering orifices and adapted to grip the wires, the said tapering orifices of the anchoring means being in members separate from the said rigid block and adapted to abut the ends of the block, each end face of the block having two facets through which respectively the said bores open, one of the facets being substantially perpendicular to the bore which opens through it and being for abutment by the associated anchoring means, and the other being at such an angle to the bore which opens through it that it is substantially perpendicular to a common axis of the connected wires.
Dependencies are inferred from the claim text.
Drawings are temporarily unavailable. Open the PDF at USPTO
From the US filing history. Foreign family members aren’t listed.
Connectors or means for connecting parts for reinforcements: the reinforcements running in one single direction
Members specially adapted to be used in prestressed constructions: anchoring devices
Friction clamps deforming the cable, wire, rope or cord: by moving a surface into the cable
Distinct end coupler: including member wedging or camming means
Term ended 17 Feb 1993 (estimated)
USPTO file history isn’t available for this patent, so only indexed dates are shown.
This invention relates to improvements in or relating to connecting devices for two wires which are to be placed under tension, and also to methods of connecting wires, especially the two ends of a wire which has ruptures. In this specification and claims, the term wire is used to include cable and rope, to which the invention is also applicable.
In various technical fields, there are utilised anchored wire stays which are tensioned and are capable of rupturing under tension. Particularly in the case of pre-stressed construction reinforcements, rupture of a wire is extremely detrimental, inasmuch as replacement of the ruptured wire involves removal of the tensioning jacks being used which are generally bulky and heavy, extraction of the ruptured parts, introduction of the fresh wire (this being sometimes a difficult operation among a group of wires), and once again placing the tensioning jacks in position so as to again initiate the tensioning process.
An object of the present invention is to provide a connecting device for two wires which renders it unnecessary to replace the wire which has ruptured on being tensioned or to remove the tensioning jack from its operational position in order to effect the connection and to put the wire again into a condition suitable for tensioning.
Embodiments of the invention in both aspects will now be described by way of non-limitative example with reference to the accompanying diagrammatic drawings, wherein:
FIG. 1 shows a simple connection established with a connecting device embodying the invention;
FIG. 2 shows the connecting device of FIG. 1 in longitudinal section;
Referring to FIGS. 1 to 4, the connecting device is constituted by an essentially cylindrical rigid block 1 having a core 2 of strong steel. The opposite ends have plane facets 3 and 4 perpendicular to the axis of the block and facets 5 and 6 which are also plane and are oblique relative to the adjacent plane facets 3 and 4. The facets 5 and 6 are parallel to each other. Longitudinally from end to end through the block extend two straight and parallel bores 7 and 8, each extending between one of the said plane facets 3, 4 and one of the oblique facets 5, 6 i.e. in one case between the facet 3 and the facet 6, and in the other case between the facet 4 and the facet 5.
The angle of the facets 5, 6 to the adjacent facets 3, 4 is such that the circular configurations corresponding to the mouths of the bores at the two facets 5, 6 are coaxial (as indicated by the line 9 in FIG. 1), this being for a purpose to be described later.
The faces 3 and 4 form seatings for anchoring means which, in the embodiment illustrated, are constituted by separate conical sleeves or bushings 10, 11 having associated split-sleeve gripping wedges 12 for retaining and anchoring the wires 13, 14.