Patent ID: 6055730
Filing Date: 2000-05-02
Classification: E04G,Y10S,Y10T

Abstract:
A method of adjusting the effective heights of construction base frames of the type having upright hollow pipes with screw jacks having externally threaded pipes in the ends thereof and collars with projection handles being threaded on the threaded pipes bottomed on the upright pipes, said screw jacks being shipped in crates having upright hollow frame members and a stop at a space from one of the hollow frame member, said method comprising providing a tool having a first end and a second end, coupling the first end to an end of a threaded pipe and coupling the second end to an electric motor, inserting the handle in one of the hollow frame members to hold the handle to prevent rotation of the collar, spinning the threaded pipe in the held collar to project the threaded pipes a selected height from the hollow pipe of the base frame by energizing the electric motor and by using the stop to limit the amount of spinning of the pipe.