Improvements in Saw Guides for Sawing Material to Form Miter Joints.
Year: 1899

page_text: Complete Specification Left, 10th June, 1899-Accepted, 15th July, 1899
Improvements in Saw Guides for Sawing Material to Form Miter
Joints.
I, CHARLES OAKS SEAVEY, of No. 10, Cutler's Block, Grant Street, in the Town
of South Framingham, State of Massachusetts, United States of America, Gentle-
man, do hereby declare the nature of this invention, and in what manner the same
is to be performed, to be particularly described and ascertained in and by the
following statement:―
This invention has relation to devices for guiding or controlling the position
or line of action of a hand-saw in sawing up stock in order to fit the abutting ends
to form neat, close miter joints, such as are desirable, if not essential, in the in-
side finishing of houses.
By my present invention I produce a device which can be applied to the stock
to be sawed by merely placing it thereon, and which may be readily adjusted so
as to secure an exact cut at any predetermined angle. My device is, moreover,
durable and can be compactly folded so as to occupy but little room in a carpen-
ter's tool chest or other place where it may be kept.
To the foregoing ends my invention consists of a saw-guide for aiding in cut-
ting stock at any required angle, embodying in its construction an angular base
or bed adapted to be placed upon the stock to be sawed, and a guide proper for the
saw pivoted or hinged upon the end of the bed, the said guide being provided at
one side with a segmental or curved arm which extends through a slot in a standard
or projection connected with the bed, in which slot the arm is adapted to be
clamped so as to hold the saw-guide in fixed position at any angle to which it may
be adjusted.
Reference is to be had to the annexed drawings and to the letters marked there-
on, forming a part of this specification, the same letters designating the same
parts or features, as the case may be, wherever they occur.
Of the drawings
Figure 1 is a plan view of my invention showing it in position on stock to be
sawed, and illustrating also the manner in which the saw-guide may be adjusted.
Fig. 2 is a front view of the same.
Fig. 3 is an end view of the same.
Fig. 4 is a sectional detail view showing a way of clamping or holding the saw-
uide in any position to which it may be adiusted

page_text: In the drawings-
a designates the base or bed of my improved saw-guide, which bed is construc-
ted as an angle-iron-that is, with one part extending at a right angle to the
other, so that it may be placed upon the edge of a piece of stock (see Figs. 1
and 4) to be sawed and be maintained in parallelism therewith. Any other form
of bed that will secure this end or subserve this purpose will answer as well.
The saw-guide proper consists of a standard c made in two parts and clamped
together at their lower ends, as, for example, by a headed screw s, the shank of
which extends through a hole formed in one part and tapped into the other part,
so that the upper ends will be held together yieldingly for a purpose to be presently
explained.
Integrally connected with the upper end of each member of the standard c is a
plate & which extends out at a right angle to the standard so as to permit of the
entrance of a saw-blade e between them, the construction hereinbefore described
for clamping the two members together providing means for pressing the plates d
against the sides of the saw blade so as to hold it in place with all necessary firm-
ness and yet not so tightly as to prevent the saw from being freely manipulated.
Below the line where the plates d are connected with the members of the stan-
dard, one (or it may be both of the members) is cut away, as at f, to permit of
the movement of the teeth of the saw in the said cut-away part without inter-
ference with any metallic part.
A screw g may be turned in holes formed in the two members of the standard
at any desired point to support a block or piece of wood i thereon, so that after the
saw has cut through the stock being operated upon it may be stopped by the said
block of wood.
The split or opening between the upper ends of the members of the standard,
being, as it were, the heel or outer ends of the plates d, are flared outwardly in
opposite directions, as at j, to facilitate entering the saw blade between the two
holding and guiding plates d.
The standard and connected saw holding and guiding plates are hinged to the
base a, as at k, so that the guide-plates may be swung around at any angle with
respect to the bed-plate, as is indicated in full and dotted lines in Fig. 1.
Pivotally connected at one end to one side of one of the plates d is a segmental
arm the free part of which passes through a slot ne formed in an upward pro-
jection n from the base a, and tapped into the upper end of the said projection
is a set-screw adapted to be turned down on the segmental arm and hold it in any
position to which it may be adjusted or moved in the slot m.
0
V
The bottom of the slot m has a sharp ridge projecting up therefrom, which
ridge is adapted to take into notches 7 formed in the lower edge of the arm 7.
These notches may be so positioned that when they are engaged by the said rib
they will adjust the guide plates with respect to the bed so as to enable the
stock to be sawed to form octagonal, hexagonal, or square joints, or joints of any
other desired angle.
The manner of using the invention has been so fully and clearly indicated in
describing its construction that it is believed that nothing more need be said on
this point than that the operator will first adjust the guide-plates d at the desired
angle, and then by placing the bed on the stock to be sawed will introduce the
saw between the guide-plates and proceed with his work substantially the same
as he would when employing the ordinary miter box.
The simplicity and efficiency of the device, and the readiness with which it may
be used will now appear obvious.
It will be noted that the two-part slotted post to which the laterally extending
plates or guides are secured is located outside of the plane of the inner face of
the angle plate or bed a, which line coincides with the outer edge of the material
to be sawed; and, furthermore, that it extends below the line of movement of the
saw and that its point of union is below said line of movement. Since this arrange-
ment leaves the plates entirely free from each other throughout, it permits the use

page_text: of the device not only with the ordinary hand saw, but also with a hack saw, buck
saw, crosscut saw, or any kind of a saw having a frame extending above the blade.
Another feature of importance is the arrangement of the notched adjusting seg-
mental arm and the sharp ridge which engages the notches. As these notches
would drop naturally over the ridge the easy and absolutely accurate adjustment
of the device is assured.
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, I declare that what
I claim is
In a saw guide for sawing material to form miter joints, the combination of a
bed or frame adapted to fit the edge of the material to be sawed, a two part slotted
standard hinged to the bed outside of the line of the inner face of the bed, the
parts of said standard being free above the lowest line of movement allowed to
the saw and joined together below said line, each part being provided with a
laterally extending plate or frame, said plates being wholly separated from each
other throughout, substantially as described.
HERBERT HADDAN & Co.,
Agents to Applicant,
18, Buckingham Street, Strand, London, W.C.
HERBERT HADDAN & Co.,
Agents to Applicant,
18, Buckingham Street, Strand, London, W.C.