erector

noun4

1. •
   A person who, or a device which erects.

   • At this stage of the construction process the only people on the site would normally be groundworkers and the steel erectors, followed by the roof cladders. — 2014
2. •
   Any of several muscles that make parts of the body erect.
3. •
   An attachment to a microscope, telescope, etc. for making the image erect instead of inverted.
4. •
   A vehicle used to support a rocket for transportation and for placing the rocket in an upright position within a gantry scaffold.