Improvement in Saw-Set. Page: 2 of 2
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H. A. HARRIS, OF CENTER, TEXAS.
Letters Patent rNo. 99,889, dated February 15, 1870.
IMPROVEMENT IN SAW-SET.
The Schedule referred to in these Letters Patent and making part of the same
To all whamn it may concern:
Be it known that I, H. A. IARRIS, of Center, in the
county of Shelby, and State of Texas, have invented a
new and improved Saw-Set; and I do hereby declare
that the following is a full, clear, and exact description
thereof, which will enable others skilled, in the art to
make and use the same, reference being had to the
accompanying drawings forming part of this specifi-
Figure 1 represents a side view of my improved saw-
Figure 2 is an edge view of the same.
Figure 3 is a top view of the stem.
Similar letters of reference indicate corresponding
This invention relates to a new implement which
can be used for setting the teeth of all kinds of saws
by hand, and without requiring any intricate ma-
The invention consists in the arrangement of a per-
forated stemn, which is to receive the teeth of the saw
successively, and in the combination therewith of an
L-shaped gauge, which regulates the degree of set.
A, in the drawing, represents a metallic bar or plate,
of suitable size, and held in a handle, B.
It has near its upper end a suitable number of trans-
verse apertures, d, one above the other, and all of dif-
ferent lengths, as shown in fig. 2. They are made
higher at one side than at the other, as shown.
C is an L-shaped plate, fitted with its long perfor-
ated shank, a, through a mortise formed in the lower
part of the bar A, and pivoted to such bar by a pin, c.
Its other arm, e, projects upward on that side of A on
which the apertures d are narrowest.
The bar A may have steps f formed on it, in line
with the lower sides of the larger apertnres, and scales
may be marked on such steps.
Along the mortise may also be marked a scale, b, to
regulate the position of the gauge 0, the said gauge
being clamped in any desired position by a suitable set-
The operation is as follows:
The saw being clamped in a suitable machine, the
instrument is applied by fitting one tooth of the saw
into one of the apertures d, as far as may be required.
The instrument is then swung to bend the tooth until
the end of the arm e strikes the blade. Then the de-
vice is applied to the second next tooth, and so firith,
until all alternate teeth are beat in one direction. The
instrument is then applied from the other side to the
The various apertures d are of different sizes, to be
adapted to the different kinds of teeth, and are made
with inclined upper fliees to prevent the straining of
the edges of the teeth.
The gauge has numbers of apertures, and can also
be clamped in any position to regulate the degree of
Having thus described my invention,
I claim as new, and desire to secure by Letters
A saw-set, consisting of the perforated bar A and of
the L-shaped gauge C, adjustable by means of a set-
screw, G, all combined and operating substantially as
herein shown and described.
H. A. HARRIS.
R. L. PARKER,
O. C. . GI'EENWOOD.
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Harris, H. A. Improvement in Saw-Set., patent, February 15, 1870; [Washington D.C.]. (texashistory.unt.edu/ark:/67531/metapth165218/m1/2/: accessed February 16, 2019), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; crediting UNT Libraries Government Documents Department.