Improvements in or connected with Adjustable Mitre Guides.
Year: 1899

page_text: Date of Application, 20th Oct., 1899
Complate Concifiondian In 4711
1000
2000
PROVISIONAL SPECIFICATION.
Improvements in or connected with Adjustable Mitre Guides.
We, ALEXANDER MACFARLANE, of 10, Victoria Terrace, Middlesborough,
Engineer, and ABRAHAM JONES, of Hartwell Place, Burley Fields, Leeds,
Engineer, both in the County of York, do hereby declare the nature of this inven-
tion to be as follows:-
The object of this invention is to construct mitre guides in such a manner
that saws may be guided so as to cut the wood or other work at any required angle,
the adjustment of the guide being most accurately and readily effected.
According to our invention, we employ a channel which may suitably be made
of metal with a wooden lining, and in one wall of the channel a gap is formed
in which a turn-table is mounted having a graduated scale thereon. The turn-
table carries two T-shaped or other guides which are faced with wood or other
suitable surface on their inner sides, and the said turn-table is provided with a
locking device which enables the angle of the guides to be set and clamped in
any required position.
The work to be cut is placed in the channel and the turn-table is set by means
of its scale to the angle required, and the saw may then be used, its sides being
guided by the interior faces of the guides.
BREWER & SON,
London and Leeds, Agents for the Applicant.
Improvements in or connected with Adjustable Mitre Guides.
We, ALEXANDER MACFARLANE, of 10, Victoria Terrace, Middlesborough,
Engineer, and ABRAHAM JONES, of Hartwell Place, Burley Fields, Leeds,
Engineer, both in the County of York, do hereby declare the nature of this inven-
tion and in what manner the same is to be performed, to be particularly described
and ascertained in and by the following statement:-
The object of this invention is to construct and arrange mitre guides in such
a manner that they may be readily adjusted and locked at various angles for the
reception of a saw, whereby materials may be cut at various desirable angles.
In order that the invention may be readily understood, reference will be had
to the accompanying drawing, in which Figure 1 is a side elevation. and Figure 2
a plan view, of a mitre guide constructed according to this invention; and
Figure 3 is a cross sectional view taken on the line XY of Figure 1.
Upon a framework A having a vertical guiding edge B, a bed C, preferably of
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page_text: wcod, is provided to receive the material to be dealt with. Extending from one
side of the framework A is a supporting bracket D, upon which a rotatable
disc E is concentrically pivotted, and which is provided with arms F F con-
structed with grooves to receive strips G of suitable material, which, combined
with a base strip H, forms a guiding channel and check for the blade of a saw.
The disc E, which is free to be turned and the guiding channel thus placed
at any angle with the guiding edge B, is provided with a locking device, whereby
the disc may be fixed at any known desired angle. The locking device may con-
veniently consist of a plunger J carried in guides and fitted with an actuating
spring and handle, the plunger J being adapted to engage with holes K in the
periphery of the disc E, which latter is preferably provided with a scale to indi-
cate the angle at which the guide is set.
In operation, the material to be cut is placed upon the bed C and retained
against the face of the guiding edge B. and the disc E is then adjusted to the
desired angle and locked in position, whereupon the guiding channel is ready
for the reception and guidance of the blade of a saw, which
may now be operated
to effect the work required.
Having now particularly described and ascertained the nature of our said
invention, and in what manner the same is to be performed, we declare that what
we claim is:-
1. A mitre guide, provided with a work bed and guiding edge, in combination
with a rotatable disc having a guiding channel formed therein, together with
means for locking the disc at the angles desired, substantially as and for the pur-
poses set forth.
2. A mitre guide provided with a work bed and guiding edge in combination
with a rotatable disc having a guiding channel formed therein, and holes formed
in its periphery to receive a spring actuated locking pin, substantially as and
for the purposes set forth.
3. The general arrangement, combination and construction of parts forming
our improvements in mitre guides, substantially as described and illustrated with
reference to the accompanying drawing.
Dad thi 17th Jon of T 1000
BREWER & SON,
London and Leeds, Agents for the Applicants.