The Union Manufacturing Co. catalog, published in 1905,
introduced new metal plane design - the X Series.
itself with a
locking vertical post mechanism for adjusting the depth of
1905 Catalog Description:
In presenting this new adjustment,
we are confident that we have the best that has yet been
designed by any Plane manufacturer.
While it is somewhat of a departure
from the accepted ideas of Plane adjustment, it is the result of
careful study of the requirements of users of tools, and is in
every point an improvement over the old.
It has been thoroughly tested by
competent mechanics and expert tool men, to determine its
strength and holding power, and all unite in praising it highly.
We have discarded the movable frog, and the cutter seat is made
a part of the body of the plane. This gives a firm seat for
cutter at all times, which cannot become loosened with our extra
heavy cutter, gives a plane that will stand ant test.
The cutter is raised or lowered be
means of a lever, which is positive, a decided advantage over
the screw adjustment commonly used.
There is no loss of motion, the
cutter responding to the slightest movement of the lever. This
lever at its outer end is clamped by two brass nuts, which hold
it securely in position. The cutter being set as desired, the
lever is solidly clamper by the nuts, making it impossible for
the cutter to be displaced. This locking device is one of the
strong points of this adjustment, as the user may be certain
that the cutter once set will remain so until changed.
Another feature of this adjustment
is the protection which may be given to the cutter when not in
use. When the plane to be laid aside, by loosening the lower nut
the lever may be lowered, thus raising the cutter within the
plane body. The edge of the cutter is thus protected and cannot
be damaged by handling, while the upper nut remaining in the
same position, when the plane is used again the cutter is
brought to exactly the same place.
The cutter is firmly held in place
be an iron cap, which sliding under two lugs in the side walls,
the proper leverage being obtained by a large brass screw at its
upper end. In this way absolutely rigidity of the cutter is
We show here a plane which can be
easily and quickly adjusted under any condition and so simple it
cannot be easily broken or disarranged.
We have no hesitation in
recommending this new plane to all users of tools.