DE407253C - Clamp connection for single conductor - Google Patents

Description

Bur. invited. Own dome
2 1 JAI. 1925

ISSUED
ON DECEMBER 18, 1924

REICH PATENT OFFICE

PATENT LETTERING

CLASS 21 c GROUP 21
(S 62596 VIII \ 2icy

Fritz Seufert in Munich. Clamp connection for single conductors. Patented in the German Empire on April 1, 1923.

The connection of line ends to overhead lines in electrical power systems took place so far

1. by twisting and soldering the wires,

2. by wrapping copper wire around the superimposed conductor ends and subsequent soldering or

3. By pushing the conductor ends into a metal sleeve at the tips to be bent with subsequent riveting or

4. by clamping connections of various kinds.

The connection types mentioned under 1 to 3 all suffer more or less inadequate contact effect, long production time and inability to detach the connection, those listed under 4 on the nature of their constructive development. The prinao There is a fundamental difference between all previous clamp connections and those described below is that 'in the former, the clamping effect when making the connection takes place, which can have the consequence that when tightening the conductor tightening nuts lose their effect and loosen, whereby Both the mechanical and the electrical contact experience a loosening, but at least no longer the guarantee for it there is that each .Konstruktionsteil in mechanical and electrical terms evenly is charged. On the other hand, in the present invention, the final one is made Clamping effect only when tensioning the conductor itself, so that the criticized disadvantages avoided, especially when using aluminum instead of copper can cause serious disturbances.

The essence of the invention is that the clamping sleeve in

lirem upper parts one down conical, elliptically shaped cutout, in which a wedge It is assumed that -the ladder is bent and when tensioned together with the wedge in The clamping sleeve is pressed in, whereby through [a wedge, the wire and the clamping sleeve n is adapted, an increase in the friction surface and thus an increase in the clamping effect is achieved. This' clamping is absolutely safe under the highest load, fully : It comes axially and is easy to loosen at any time. In the drawing are for example ^ Embodiments of the invention shown.

Fig. Ι shows the device in view and partial section.

Figure 2 is a cross section through the clamp.

Fig. 3 is a modified ^execution: orm of the invention in view and partly in section, and

Fig. 4 is a cross section through this Vorrichning.

α are the sleeves forming the clamping housing, b the slotted clamping sleeve provided with the elliptical recess; c is the union nut; d is the ladder and k is the wedge.

In the embodiment according to Fig. 3 and 4, which is intended for conductors with a smaller cross-section, the clamping sleeve b has been omitted. and the elliptical recess is provided directly in the sleeves α .

Claims (2)

Patent Claims: 1. Clamp connection for single conductors with two forming the terminal housing rigid, internally conical sleeves and connected by a union nut, characterized in that the in the sleeves (σ) arranged clamping sleeves (6) in the upper part of their inner bore have an elliptically shaped, downwardly conical recess. 2. Clamping connection according to claim 1 for conductors of smaller cross-section, characterized characterized in that the terminal housing. forming sleeves (α) the elliptically shaped Own recess. Fig.i. Fig. 3. Fig. 4.