Subject: looking for "ellis clamps"

From: [email-masked] (johns)
Date: 12 Feb 1997 01:21:22 GMT

From: [email-masked] (johns)
Newsgroups: alt.building.construction
Subject: looking for "ellis clamps"?
X-Newsreader: WinVN 0.92.6+

i have used a "clamp" system for jacking porch posts before which was 
called (by one person anyway) an "ellis clamp" system. it worked by simply
laying two 4x4's side by side with two "clamps" which held them together 
and which would allow one 4x4 to move upward but not slip back down. the 
upward push was delivered through a lever which clamped onto the lower 4x4
and pushed up on the bottom of the upper 4x4. 
it is a great system and allowed the use and reuse of random length 4x4's
as well as providing controlled lift. i'm wondering if any one out there 
has ever seen such a system and could tell me where to find one.
thanks for any help,
johns