In Figs. 1 and 2 of the accompanying engravings views of the
opposite sides of a new combination plane, manufactured by J.
Siegley, Wilkesbarre, Pa., are presented.
The combination tool is in some respects superior to each of the
single tools combined in it. Using it as a plow plane, it has
some advantages over the common wooden plow, on account of the
throat being the closest at the side of the bit, and therefore
preventing the bit from tearing.
Fig. 3 shows an enlarged cross-section, and will enable our
readers to better understand the arrangement of parts. The tool
shown is a most ingenious and successful combination of a common
carpenter's plow, dado, side and center-bead plane, making in
all respects a very serviceable, and at the same time cheap,
The manufacturer asserts that this tool will produce a clean
groove in any kind of cross-grain wood. With it the setting and
running of a gauge is dispensed with, since, by placing the bit
exactly in line with the advance cutters, which is a special
feature of this tool, it will do the work of a gauge; therefore
all possibility of a rough groove is avoided.
In using this tool as a dado it also has some advantages over
the ordinary wooden tool. It is adjustable from 3/8 inch to any
required width. The advance cutters are fastened by set-screws,
holding them firmly in place, and are secured in a slanting
position, so as to give a free clearing to the blades.
Only the point of the cutter comes in contact with the sides of
the groove. Accordingly, the tool works much easier than the
wooden dado. A common objection in the use of dado planes is
that after the point of the advance cutter is worn away it will
stick in the groove. This difficulty is successfully overcome in
the present tool by means of the adjustment provided.
The manufacturer claims for this tool that it is capable of
doing more work than others, since it dispenses with the extra
work of nailing in place a strip for a guide. All that is
required with this tool is to hold the square where the groove
is to be made, and, running the tool along the square a few
times, get the groove started.
This done, the square can be laid aside and the groove finished
to the required depth. Considering the tool as a side bead, it
has the advantage of doing its work as well as the wooden one,
while it does not take up the chest-room required for keeping
wooden bead planes.
The tool is easily kept in order from the fact that it is not
necessary to keep the bit in conformity with any peculiar shape,
as is always the case with the wooden bead plane. As a center
bead this tool works equally well, and is much quicker adjusted
than the wooden center bead.
The necessity of nailing a strip in place for the guide is also
overcome. The same bit in this tool will work either as a side
or center bit, and only a moment's work is required to change it
from one to the other. The advance cutters can also be used in
this case, and therefore the tool is not likely to tear the
work, as is the case with common bead planes.
Carpentry & Building, Vol. 6, December 1884,
(New York: David Williams, Publisher).