Strand lifting system

Details Strand lifting system Strand lifting system

1979-08-20

1981-06-23

Watson, Robert C.

Implements or apparatus for applying pushing or pulling force

Pipe or rod jack

Tie rod tensioner

F21B 1900

Patent

active

042746183

ABSTRACT:
Steel strand is passed through a plurality of upper and lower multi-part chucks which each are capable of grasping and holding steel strand passed through it when they are seated in upper and lower seating chambers, respectively. Upper and lower hydraulic seating rams comprise pistons used to cause chuck seating plates to be driven against the top flanges of the upper and lower chucks, thereby causing them to seat within their respective seating chambers. Either or both the top and bottom chucks may be seated at the same time. A hydraulic system allows an operator to smoothly lift and lower loads through the seating and unseating of the upper and lower chucks and the extending and retracting of pistons of main lifting rams interposed between plates containing the upper and lower chuck seating chambers.

REFERENCES:
patent: 3491431 (1970-01-01), Pewitt
patent: 3658296 (1972-04-01), Yegge
patent: 3844023 (1974-10-01), Surribas

Affiliated with

Also associated with

Rating

Strand lifting system does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Strand lifting system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Strand lifting system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2203985