Device with controlled deformation for protecting power lines against overloading due to the weather
First Claim
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1. A device with controlled deformation for reducing the stresses exerted on a power line conductor and power line pole by reducing the tension of the conductor and increasing its sag comprising:
- (a) a first pole-side arm and a first conductor-side arm, said arms being pivotally connected to one another at a first pivot axis, each of said arms having a distal end remote from said pivot axis, said distal ends of said pole-side and conductor-side arms being adapted, respectively, for mechanical connection to the power line pole and to the power line conductor, said arms being movable between a closed position wherein said distal ends are adjacent one another and a full open position wherein said arms extend in opposite directions from said pivot axis and said distal ends are remote from one another;
(b) a rod of predetermined tensile elongation properties, one end of said rod being connected to each of said arms between said pivot axis and said distal ends of said arms so that said rod normally retains said arms in said closed position and said rod is elongated upon movement of said arms towards said full open position; and
(c) means for providing a remote visual indication of the elongation of said rod.
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Abstract
A device for relieving mechanical loads on electrical conductors and line poles. The device includes arms pivoted to one another and a rod connected to the arms so that upon pivoting movement of the arms towards a full open position the rod is elongated. An indicator link is provided for indicating deformation of the rod.
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Citations
10 Claims
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1. A device with controlled deformation for reducing the stresses exerted on a power line conductor and power line pole by reducing the tension of the conductor and increasing its sag comprising:
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(a) a first pole-side arm and a first conductor-side arm, said arms being pivotally connected to one another at a first pivot axis, each of said arms having a distal end remote from said pivot axis, said distal ends of said pole-side and conductor-side arms being adapted, respectively, for mechanical connection to the power line pole and to the power line conductor, said arms being movable between a closed position wherein said distal ends are adjacent one another and a full open position wherein said arms extend in opposite directions from said pivot axis and said distal ends are remote from one another; (b) a rod of predetermined tensile elongation properties, one end of said rod being connected to each of said arms between said pivot axis and said distal ends of said arms so that said rod normally retains said arms in said closed position and said rod is elongated upon movement of said arms towards said full open position; and (c) means for providing a remote visual indication of the elongation of said rod. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A device with controlled deformation for reducing the stresses exerted on a power line conductor and power line pole by reducing the tension of the conductor and increasing its sag comprising:
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(a) a first pole-side arm and a first conductor-side arm, said arms being pivotally connected to one another at a first pivot axis, each of said arms having a distal end remote from said pivot axis, said distal ends of said pole-side and conductor-side arms being adapted, respectively, for mechanical connection to the power line pole and to the power line conductor, said arms being movable between a closed position wherein said distal ends are adjacent one another and a full open position wherein said arms extend in opposite directions from said pivot axis and said distal ends are remote from one another; and (b) a rod of predetermined tensile elongation properties disposed adjacent said pivot axis, said rod extending traverse to said arms and protruding outwardly beyond said arms when said arms are in said closed position, one end of said rod being connected to each of said arms between said pivot axis and said distal ends of said arms so that said rod normally retains said arms in said closed position and said rod is elongated upon movement of said arms towards said full open position, said rod being adapted to elongate without breakage upon movement of said arms to said full open position.
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Specification