Distributing clamping stress device for cable laying

Claim 2

A clamping device for receiving and holding a cable, said device comprising an open-ended tube having at least two parts separable from each other along lines extending axially of said tube and having a plurality of peripheral grooves on the interior wall thereof, each groove having, in cross-section, an inwardly inclined surface, means for holding said parts of said tube together, and a plurality of Rings of resilient material, one mounted in each groove, with the exterior periphery thereof engaged by the wall of the corresponding groove, the smallest inner peripheral portion of said tube being greater than the exterior periphery of the cable to be received thereby, the inner periphery of said rings being at least substantially as small as said exterior periphery of said cable and being smaller than said smallest inner peripheral portion of said tube and the maximum inner peripheral wall dimension of the ring engaging portion of said grooves being less than the exterior peripheral dimension of said rings for applying radial pressure to said rings and for thereby compressing said rings between said tube and said cable in all relative positions of said cable and said tube.

Claim 3

A clamping device as set forth in claim 1 wherein each groove comprises a frusto-conical surface and a cylindrical surface adjoining the larger diameter end of said frusto-conical surface, the dimension of the circumference of said cylindrical surface being less than the exterior peripheral dimension of said rings.

Claim 4

A clamping device as set forth in claim 2 wherein each ring is toroidal.

Claim 5

A clamping device as set forth in claim 1 wherein said tube is generally cylindrical and comprises two semi-cylindrical halves, and said rings are each formed of two substantially semi-circular halves.

Claim 6

A clamping device as set forth in claim 4 wherein said rings are made of rubber.

Claim 7

A clamping device as set forth in claim 4 further comprising means for retaining said semi-circular ring halves within said grooves when said semi-cylindrical tube halves are separated.

Claim 8

A clamping device as set forth in claim 9 further comprising means at the end of said housing at the side of said grooves having the largest peripheral dimension for suspending said housing.

Claim 9

A clamping device for receiving and holding a cable, said device comprising an open-ended, generally cylindrical tube having two semi-cylindrical halves separable from each other along lines extending axially of said tube and having a plurality of peripheral grooves on the interior wall thereof, each groove having, in cross-section, an inwardly inclined surface, means for holding said parts of said tube together, comprising a housing having two halves for receiving said tube halves, said housing halves being hinged together at one side thereof along a hinge line substantially parallel to the axis of said tube, and means at the opposite side of said housing halves for holding them together, and a plurality of rings of resilient material, each ring being formed of two substantially semi-circular halves and one ring being mounted in each groove, with the exterior periphery thereof engaged by the wall of the corresponding groove, the smallest inner peripheral portion of said tube being greater than the exterior periphery of the cable to be received thereby, the inner periphery of said rings being at least substantially as small as said exterior periphery of said cable and the maximum inner peripheral wall dimension of the ring engaging portion of said grooves being less than the exterior peripheral dimension of said rings for applying radial pressure to said rings and for thereby compressing said rings between said tube and said cable in all relative positions of said cable and said tube.

Claim 10

A clamping device for receiving and holding a cable, said device comprising an open-ended, generally cylindrical tube having two semi-cylindrical halves separable from each other along lines extending axially of said tube and having a plurality of peripheral grooves on the interior wall thereof, each groove having, in cross-section, an inwardly inclined surface, means for holding said parts of said tube together, comprising a housing having two halves for receiving said tube halves, said housing halves being hinged together at one side thereof along a hinge line substantially parallel to the axis of said tube, and means at the opposite side of said housing halves for holding them together, and a plurality of rings of resilient material, each ring being formed of two substantially semi-circular halves and one ring being mounted in each groove, with the exterior periphery thereof engaged by the wall of the corresponding groove, the smallest inner peripheral portion of said tube being greater than the exterior periphery of the cable to be received thereby, the inner periphery of said rings being at least substantially as small as said exterior periphery of said cable and the maximum inner peripheral wall dimension of the ring engaging portion of said grooves being less than the exterior peripheral dimension of said rings for applying radial pressure to said rings and for thereby compressing said rings between said tube and said cable in all relative positions of said cable and said tube.