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What Is It? |
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UNITED
STATES PATENT OFFICE
JASPER CLARK, OF LA PORTE PENNSYLVANIA, ASSIGNOR TO CYNTHIA
J. CLARK, OF THE SAME PLACE.
SAW-TOOTH SWAGE.
Specification forming part of Letters Patent No. 226,977,
dated April 27, 1880.
Application filed September 10, 1879.
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To all whom it may concern:
Be it known that I, JASPER CLARK, of La Porte borough, in the
county of Sullivan and the State of Pennsylvania, have invented
certain new and useful Improvements in Saw-Tooth Swages, of
which the following is a specification.
This invention relates to a certain new and useful improvements
in swages for sharpening saw-teeth; and the invention consists
in a novel construction and combination of parts, all as will
be hereinafter fully described, and specifically pointed out
in the claim.
To enable others skilled in the art to which my invention is
most nearly connected to make and use the same, I will now proceed
to describe its construction and operation, referring for illustration
to the accompanying drawings, forming a part of this specification,
and in which—
Figure 1 is a perspective view of a device embodying my invention.
Figs, 2, 3, 4, 5, 6 and 7 represent the different parts composing
the instrument.
In the drawings, A represents the stock, composed of a piece
of hardened steel; B, and collar fitting around the stock A,
for holding dies and plates E E and the small liners F F in
the position. The stock A under the collar B is cut away of
beveled off, as shown at H in Fig. 7.
C represents a lever attached to the collar B, which is used
as a clamp for the purpose of holding the instrument firmly
and steadily upon the saw and the saw-plate firmly against the
lower portion of the stock A.
D represents a steel spring for the purpose of throwing the
clamping-lever open when it is desired to remove the instrument
from the saw.
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