DE1077278B - Spacer for overhead lines - Google Patents

Description

GERMAN

The invention relates to a spacer for overhead lines, which consists of a rod with one Clamp at each end and one longitudinally split sleeve made of flexible, gut-like insulating material consists, which encloses the cable and is pressed against the cable by the clamp. After a older proposal is a spacer of this type slotted at its ends to a limited length, see above that there are two jaws that can be bent apart. In contrast, according to the invention the rod divided over its entire length while bisecting the clamping bores, and his both parts are releasably connected to one another.

The spacer according to the invention has the advantage that when the cable is inserted, no parts whatsoever must be elastically spread. One is therefore not required to make the rod from a plastic of considerable Rather, it is possible to establish compliance so that no overstretching occurs when spreading choose a material that is resistant to bending and buckling even with a relatively small cross-section Rod supplies. Vers or exercises can also be dispensed with, as are necessary with flexible clamping jaws in order to to secure the jammed line against falling out. On the whole, the invention provides a lightweight, easily mountable spacers of great rigidity.

To releasably connect the two parts to one another, you do not have to rely on screw connections. In the preferred embodiment, dovetail-shaped bars are used instead, which are shown in opposing dovetail grooves of the two parts. the Longitudinally split insulating material sleeves are expediently provided at their ends with flanges, which act as a means serve to fix against axial displacement.

The drawing illustrates an embodiment. It shows

1 shows an overhead line suspended from masts with two spacers,

Fig. 2 parts of a spacer with the features of the invention before assembly in perspective Opinion,

3 shows one half of the spacer according to FIG. 2 in plan view, partially in section,

Fig. 4 shows a central longitudinal section through the assembled spacer and

FIG. 5 shows a section along line V-V in FIG. 4.

The spacer shown consists of two halves 1 and 2, each of which has the shape of a rod with thickened ends. The thickened ends 3 and 4 of half 1, like the ends 5 and 6 of half 2, are provided with semi-cylindrical recesses 7, 8 and 9, 10, respectively. Will the halves according to

Spacers for overhead lines

Applicant:

BaIfour, Beatty & Co. Limited, London,

and Andre Rubber Company Limited,

Surbiton, Surrey (UK)

Representative: Dr.-Ing. G. Eichenberg

and Dipl.-Ing. H. Sauerland, patent attorneys,

Düsseldorf 10, Cecilienallee 76

Claimed priority:
Great Britain August 2, 1956

John Edward Gill, Brentwood, Essex,
and Edward William Fletcher, Surbiton, Surrey

(Great Britain),
have been named as inventors

Fig. 4 put together, the ends form spherical Heads with cylindrical bores. Pins are used to secure the position of the joined halves 11 and 13 that engage holes 12 and 14. Both halves are also dovetail-shaped on their insides Slits 15, 16 and 17, 18 are provided, which when the halves are joined together face. Correspondingly shaped wedges 19, 20 are pushed into these slots, on which limit stops 21, 22 and tabs 23, 24 are formed. The tabs 23, 24 are after insertion bent over to secure the wedges that hold the two halves together.

The bores 7, 9 and 8, 10 are used to accommodate slotted sleeves 27, 28 made of elastic Material, which in turn enclose the cables 25, 26. When assembling the bushings 27,

* ·> 28 first wrapped around the cable and then in inserted the recesses 9, 10 of the lower half 2 of the spacer. Then the upper half becomes 1 brought into position, and both halves are locked together by the wedges 19,20. The cans 27, 28 are sized in inner diameter or outer diameter or both so that they are when assembled a certain compression due to the ends 3, 5 and 4, 6 acting as clamping jaws experience and thereby attach the spacer to the

909 759/299

set leg securely. Flanges 29 secure the sleeves against axial displacement. The wall thicknesses of the bushings are chosen so that small deviations the cables can be absorbed from the parallel position by the flexibility of the bushings.

When designing halves 1 and 2, the Light metal injection molding, attention is paid to clean rounding on the outer surface to avoid corona discharges to prevent.

How the spacer can be attached to two cables 25, 26 of an overhead line, their masts are designated by 30 and 31, is illustrated schematically in FIG.

Claims (3)

Patent claims: 1. Spacer for overhead lines, consisting of a rod with a clamp on each End and a longitudinally split sleeve made of flexible, rubber-like insulating material, which the Encloses the cable and is pressed against the cable by the clamp, characterized in that that the rod is divided over its entire length by bisecting the clamping bores (9) and its two parts (1, 2) are detachably connected to one another. . 2. Spacer according to claim 1, characterized in that for connecting the two parts (Ij 2) dovetail-shaped bolts (19, 20) are used, which are in opposing dovetail-shaped Grooves (17, 18) of the two parts are inserted. 3. Spacer according to claim 1 or 2, characterized in that the longitudinally divided insulating material sleeves (27, 28) are provided at their ends with flanges (29) as a means of fixing serve against axial displacement. Considered publications:
German interpretative document No. 1 035 230. 1 sheet of drawings © 909 759/299 3.60