Implements or apparatus for applying pushing or pulling force – Method or apparatus for placement of conductive wire – Utility pole guide
Patent
1987-05-22
1989-07-04
Watson, Robert C.
Implements or apparatus for applying pushing or pulling force
Method or apparatus for placement of conductive wire
Utility pole guide
B65H 5900
Patent
active
048444197
DESCRIPTION:
BRIEF SUMMARY
FIELD OF THE INVENTION
The present invention relates to a cable carrier for use when fitting power cables or lines to support insulators, the carrier being constructed in a manner which will enable it to be firmly attached to the neck of an insulator with the aid of a gripping device that comprises two legs on which respective gripping members, preferably arcuate gripping members, are mounted.
BACKGROUND AND PRIOR ART
When running overhead cables or like power lines with the aid of known cable carriers mounted on support insulators, the cable will be spaced from the insulator when the cable is tensioned at the end of a cable run. This means that the cable must be transferred or carried-over from the cable carrier to the support insulator, in some way or another. This work is normally carried by a linesman, who climbs the pole or post carrying the cables and is there forced to carry out the relatively heavy task of shifting the cable while in a relatively uncomfortable working position. For example, it is normally necessary for the linesman to lift the cable manually from the cable carrier and place the cable on an attachment bolt or like support for the insulator and then, subsequent to dismantling the cable carrier, to lift the cable from the attachment bolt or like support onto the insulator. This task requires the cable to be lifted some considerable distance out from the post, which is an extremely heavy task to perform and which subjects the spine of the linesman to excessive and harmful strain. Various kinds of lifting devices have been proposed with the view of safeguarding the linesman in this latter regard. These lifting devices, however, are in themselves troublesome and difficult to handle, and at times require the use of two men to transfer a cable from the cable carrier to the insulator.
SUMMARY OF THE INVENTION
The object of the present invention is to facilitate the work of the linesman, by eliminating the need to lift the cable from the cable carrier to the insulator, either with or without the aid of a lifting device. This object is achieved by providing each leg of the aforesaid cable carrier with a roller the axis of which is so inclined in relation to the leg that the axes of the two rollers intersect one another above the insulator when the cable carrier is fitted, thereby centralizing a cable drawn over the rollers in relation to the top part of the support insulator. When running or drrawing a cable, the cable carrier is initially positioned so that the rollers extend transversely to the cable and, subsequent to running the cable, is loosened slightly from the insulator and rotated around the insulator in a direction such that the cable will glide down onto the underlying insulator, along the peripheral surfaces of the inclined rollers, so as finally to slide off the rollers and onto the insulator. The cable carrier can now be loosened completely and removed and the cable secured to the insulator, without the assistance of a cable lifting device .
BRIEF DESCRIPTION OF THE DRAWINGS
The invention will now be described in more detail with reference to the accompanying drawings, in which
FIG. 1 illustrates a cable carrier, according to the invention, in plan view;
FIG. 2 is a side view of the cable carrier illustrated in FIG. 1; and
FIG. 3 is a view of the cable carrier taken from the rear.
DESCRIPTION OF A PREFERRED EMBODIMENT
FIG. 1 is a plan view of a cable carrier 1 mounted on a support insulator 2, and while illustrates a cable or line 3 that has been drawn or run over the cable carrier. The cable carrier 1 is basically a gripping device which, in the illustrated embodiment, has a scissorlike configuration, i.e. it comprises two legs 4, 5 which are held together at their mutual point of intersection by means of a rivet 8. Each of the legs has mounted thereon a respective arcuate gripping member 6, 7 which is covered with a layer of resilient material, said gripping members being intended to grip around the neck part of the insulator 2. In the illustrated embodiment, the
REFERENCES:
patent: 743656 (1903-11-01), Nettles et al.
patent: 4013269 (1977-03-01), Lovett
Thorsman & Co. Aktiebolag
Watson Robert C.
LandOfFree
Cable carrier does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Cable carrier, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Cable carrier will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-847562