Aerial extension ladder

Details Aerial extension ladder Aerial extension ladder

1977-05-02

1978-06-13

Machado, Reinaldo P.

Fire escape, ladder, or scaffold

Having transpositioning base and erecting means

Ladder pivotably mounted on transpositioning base

182 2, 182208, 52121, E06C 506

Patent

active

040943810

ABSTRACT:
A truck mounted telescopically extensible ladder is rotatably connected to a turret and pivoted about an elevation cylinder. A double acting-double end hydraulic cylinder, mounted in the base ladder section, is connected by a cable and pulleys to an intermediate ladder section for extending and retracting the latter. A top ladder section is connected to the intermediate ladder section by a cable entrained around pulleys at the respective ends of the intermediate ladder section and secured to the upper end portion of the base ladder section for telescopically extending the top ladder section in response to telescopic extension off the intermediate ladder section.

REFERENCES:
patent: 2614743 (1952-10-01), Arps
patent: 3467217 (1969-09-01), Zwight
patent: 3572467 (1971-03-01), Hall
patent: 3845596 (1974-11-01), Veenstra

Affiliated with

Also associated with

Rating

Aerial extension ladder does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4471