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2
1,101,722
tween said rods, as and for the purpose set
forth.
2. In a. device of the character described,
two similar chairs each having an upstand-
5 ing flange arranged to engage the outer side
of the base of a rail, a sharp edged rib ex-.
tending from each chair along the outer
edge, tie rods disposed in sets of two -con-
necting said chairs, and wedges having ser-.
rated faces to engage said rods, as and in 10
the manner set forth.
In testimony whereof I affix my signature,
in the presence of two witnesses.
JOSEPH L. WHEELER.
Witnesses:
F. R. CFwn,
G. A. JrwEIL.
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Washington, D. C."