Apparatus for the SZ-twisting of stranding elements of electric

Details Apparatus for the SZ-twisting of stranding elements of electric Apparatus for the SZ-twisting of stranding elements of electric

1981-01-27

1982-05-11

Watkins, Donald

Textiles: spinning, twisting, and twining

Apparatus and processes

Alternate twist

57294, H01B 1304

Patent

active

043286640

ABSTRACT:
SZ twisting of stranding elements of electric or optical cables and lines is accomplished by means of twisting apparatus which consists of a twisting section defined by a first and a second twisting point within which at least one twisting head is arranged. The twisting head includes at least one deflection pulley or deflection roller which is stationary in the circumferential direction of the material to be twisted and with which the material to be twisted is in contact over part of the circumference. The axis of the deflection pulley or deflection roller is set at an angle to the axis of the tautly conducted material to be twisted. The inclination of this axis can be varied at intervals and the location of the deflection pulley or deflection roller relative to the material to be twisted can be changed at intervals. By setting the axis at an angle, a force component in the tangential direction which leads to a twisting of the material to be twisted, is exerted on the material to be twisted. The twisting head is designed so that the twisting takes place in always one direction, but with different magnitude at intervals. The super-position of two twists at the entrance and the exit of the twisting section leads to a resultant SZ twist.

REFERENCES:
patent: 3043084 (1962-07-01), Smith
patent: 3373549 (1968-03-01), Shaw
patent: 3407588 (1968-10-01), Feese
patent: 3491525 (1970-01-01), Sugi
patent: 3762142 (1973-10-01), Rasmussen
patent: 3808787 (1974-05-01), Vogelsberg
patent: 4056925 (1977-11-01), Vogelsberg
patent: 4196576 (1980-04-01), Vogelsberg

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