Gin (Hiccup) Pole

IMG_20150722_114957529Gin Pole ready for use.

I’ve made two small changes to add reinforcement
that were not in the original design plan.
Advertisements

One response to “Gin (Hiccup) Pole

  1. A gin pole (derived from gyn, a three-legged lifting device) is a supported pole which uses a pulley or block and tackle on its upper end to lift loads. The lower end is braced or set in a shallow hole and positioned so the upper end lies above the object to be lifted. The pole (also known as a “mast”, “boom”, and “spar”) is secured with three or more guys. These are manipulated to move the load laterally,[1] with up and down controlled by the pulley or block.
    A gin pole being used to install a weather vane atop the 200 foot steeple of a church in Kingston, New York.
    Roof trusses being erected with gin poles
    The gin pole is considered a form of derrick, called standing derrick or pole derrick,[2] distinguished from sheers (or “shear legs”) by having a single boom rather than a two-legged one.
    Gin poles are also used to raise loads above structures too tall to reach with a crane, as placing an antenna atop a steeple, and to lift segments of a tower atop one-another during erection. When used to create a segmented tower, the gin pole can be detached, raised, and re-attached to the just completed segment in order to lift the next. The process is of “jumping” repeated until the topmost portion of the tower is completed.
    Gin poles are mounted on flatbed trucks as a primitive form of mobile crane, used for lifting and relocating loads, and salvage operations in lieu of a more sophisticated wrecker.

    Like

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s