Apparatus and method of threading a closed framed opening by hel

Details Apparatus and method of threading a closed framed opening by hel Apparatus and method of threading a closed framed opening by hel

1979-11-29

1981-07-14

Watson, Robert C.

Implements or apparatus for applying pushing or pulling force

Method or apparatus for placement of conductive wire

Utility pole guide

B66D 136

Patent

active

042782376

ABSTRACT:
An apparatus and method of automatically threading successive closed framed openings by helicopter towing a line equipped with a separable coupling. The invention utilizes a short cable loop pre-threaded through each closed frame such as the throat of a stringing block which cable loop is provided at its ends with coupling halves releasably supported at the opposite ends of a trough overlying the framed opening to be threaded. A helicopter is manoeuvred to drop the towing line coupling into a trough where its halves are automatically separated and thereafter recoupled to a respective end of the cable loop. Subsequently, the forward coupling can be similarly separated for insertion of a second cable loop in the towing line at the next threading apparatus in the helicopter's path of travel.

REFERENCES:
patent: 3530548 (1970-09-01), Gearin
patent: 3861814 (1975-01-01), Fisher
patent: 4006884 (1977-02-01), Lederhos

Affiliated with

Also associated with

Rating

Apparatus and method of threading a closed framed opening by hel does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Apparatus and method of threading a closed framed opening by hel, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus and method of threading a closed framed opening by hel will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2161380