Patent ID: 6152424
Filing Date: 2000-11-28
Classification: B66F,E04F

Abstract:
A device for exerting force against opposing portions of a structure said device comprising:first and second end blocks having resilient faces for engaging the structure portions;adjustable means for exerting force against the end blocks said means comprising;a first tubular element having a first and second end, the second end engaging the second block, said tubular element having a length and having at least one hole pair diametrically traversing the element and positioned along the length, and a first pin having a diameter positioned in said hole pair;a first rod element having a first and a second end, said rod first end engaging the first block, and screw threads having a first pitch and a first direction formed in the second end; the first rod element being positioned coaxially with the first tubular element;a second rod element having a first and a second end, the first end having screw threads having a second pitch and second direction, said second rod element being positioned coaxially with both the first rod element and the first tubular element and with the rod second end positioned within the tubular element first end,an internally threaded nut engaging the threaded ends of the first and second rods,the second end of the second rod having a slot formed therein, the slot having an opening and a bottom, the slot having a first portion positioned substantially adjacent the opening, said first portion having a first width, the first width being sufficient to allow passage of the first pin.