Saw-Filing Machine Page: 4 of 9
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No. 737,033.
UNITEDSTATES
Patented August 25, 1903.
PATENT OFFICE.JOHN D. SMITH, OF BONIAM, TEXAS.
SAW-FILING MACHINE.
SPECIFICATION forming part of Letters Patent No. 737,033, dated August 25, 1903.
Application filed September 11, 1902. Serial No. 123,018. (Io model.)'To all whom it may comcerm:
Be it known that I, JOHN D. SMITH, a citi-
zen of the Unaited States, residing at Bon-
ham, in the county of. Fannin, and State of
4 Texas., have invented new and useful Im-
:provements in Saw-Filing Machines, of which
the following is a specification.
This invention relates to saw-filing ma-
(chines; and the object of the invention is to
Fro :provide a simple and effective device of this
character which is adapted to sharpen with
:accuracy and rapidity the teeth of different
kinds of.-saws.
.Other objects and. advantages of the inven-
S5 ition will beset forth;inthe following descrip-
tion, while the .noe1tyithereof will form the
basis of 'the .claimssucceeding such descrip-
ftion,;:and said invention is clearly illustrated.
iin'the accompanying drawings, forming a part
:o 'of this specification, and in which-
Figure 1 is a top plan view of my improved
saw-filing machine. Fig. 2 is a vertical sec-
tion taken on the line 2 2 of Fig. 1.. Fig. 3
is a vertical section taken on the line 3 3 of
25 Fig. 1. Fig. 4 is a top plan view, on an en-
larged scale, of the spacing device and co6p-
erating coupling member. Fig. 5 is a side
elevation of said spacing device. Fig. 6 is! an
end view of the same. Fig. 7 is a transverse
30 section of the file-frame. Figs. 8 and 9 are
detail views of the saw-clamps. Fig. 10 is a
perspective view of the actuator or key for
opening the jaws of the device.
Like characters refer to like parts in all the
35 figures.
The improved device includes in its con-
struction a pair of elongated jaws 2 and 3,
the jaw 2 constituting the inner jaw, as it is
attached by fastening means to the work-
4o bench or other suitable support. These jaws
may be niade of any suitable material. The
- inner jaw 2 has at suitable points in its length,
on the under side thereof, depending projec-
tions or arms 4. These depending arms are
,45 perforated to receive screws or other fasten-
ing means for securing the appliance in place,
or other.means may be provided for this pur-
pose. The lower ends of the arms 4 terminate
in oppositely-disposed lugs or ears 5, each
..o having a tapped hole adapted to receive the
vertically-adjustable screws 6. These screws,
it will be understood, can be changed from Ione lug to'another upon the respective arms
4 in order to adapt them to saws of different
lengths. - The upper ends of the screws are 55
provided with 'slitted portions 7, the slits of
which are adapted to receive the lower edge
of a saw, said screws constituting a means
for adjustably supporting the saw- below the
jaws. The jaws act as a vise and are spring- 6v
actuated-that is to say, they clamp or grip
the saw between their effective faces by means
of a spring or springs, two of such springs
being shown and each being denoted by 8.
The springs are of the flat kind, and they are 65
fastened at their lower ends to the lower ends
of the arms 4- and are attached at their upper.
ends to a longitudinal rib 9 on the under side
of the outer jaw 3. . The springs exert a force
sufficient to properly hold the saw against 70
longitudinal and vertical movement while the
teeth thereof are being sharpened or other-
vise operated on. In the present case the
lower ends of the flat straight springs 8 have
elongated slots 8' to receive the screws 4', 75
tapped into the arms 4,by reason of which ver-
tical adjustment of said springs can be se-
cured, in order to bring the jaws 2 and 3 ab-
solutely into horizontal alinement.
. I have shown at 10 an actuator or key for 8o
moving the outer or movable jaw away from
its companion for the purpose of inserting a
saw between the said jaws. The inner end
of the said actuator or key 10 has a pin 11, of
substantially cylindrical form, adapted to-be 85
inserted in the correspondingly-shaped hole
12 in the inner jaw, said key being provided
between its ends with a second.pin 13, adapted
to be inserted in the longitudinal slot 14 in
the outer jaw 3. It will be seen that the outer 90
wall of this slot is rounded, so that it acts in
effect as a cam. To open the jaws the pin 11
will be inserted in the hole 12, and the same
will follow with respect to the pin 13 and slot
14. The pin 13 being toward the right end of 95
the said slot, the actuator or'key 10 will then be
swung toward the left, and the pin 13 by en-
gaging the rounded portion. of the slot 14 will
cause the jaw 3 to be moved away from its
companion, so as to permit of the introduction x o
of the saw, the pin 11 thereby serving as the
fulcrum of the actuator or key, which consti-
tutes a lever by which considerable powei' can
be applied to the outer jaw.
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Smith, John D. Saw-Filing Machine, patent, August 25, 1903; [Washington D.C.]. (https://texashistory.unt.edu/ark:/67531/metapth513997/m1/4/: accessed March 29, 2024), University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu; crediting UNT Libraries Government Documents Department.