Improved Feed Motion for Circular Saw Benches.
Year: 1890

page_text: Date of Application, 11th Nov., 1890
Complete Sp.cification Left, 11th Aug., 1891-Accepted. 26th Sent
1801
PROVISIONAL SPECIFICATION.
Improved Feed Motion for Circular Saw Benches.
1, FREDERICK EVANS, Engineer, 14 Holly Grove, Seaforth, Lancashire, do
hereby declare the nature of this invention to be as follows :-
This invention is an improved method of attaching a feed motion, generally
known as roller or continuous feed to circular saw benches and the like, and
consists primarily of a hollow column firmly fixed to the back edge of a circular
saw bench behind the fence, this column is turned at its upper portion to receive
an arm bored so that it will radiate upon the said column & may be fixed in any
desired position, this radiating arm when moved till about at right angles with face
of fence projects to about front edge of bench, to this end of radiating arm is
attached a shorter arm in such a manner by a joint so that it will swing on a
vertical axis through about three fourths of a circle, the free end of this shorter
arm carries a vertical spindle projecting downwards to near the surface of the saw
bench top and carries a suitable feeding roller. Revolving motion is communicated
to this roller by a vertical shaft passing through the centre of the column upon
which the longer arm radiates & thence by horizontal shafts & bevel wheels to the
feed roller, or if preferable by endless chains actuated by suitable wheels first from
column shaft to vertical axis at other end of long arm & thence by another endless
chain from this axis to feed roller spindle. It will thus be seen that feed roller
may be driven in any position radiating arms may be moved to. The front of fence
is fitted with the usual anti-friction rollers to reduce the friction of timber against
the fence. A chain or rope is attached to free end of shorter arm which passes
over a guide pulley at back of bench & has attached a weight to keep the feeding
roller pressing upon the timber placed against the fence so that when the roller is
set in motion the timber is fed forward to be cut by the saw. It will now be seen
that timber of varying thickness may be fed one after the other, as the shorter arm
radiating upon its axis will accommodate itself to any thickness within its range,
pressure being obtained by the aforesaid rope & weight.
The features of novelty claimed for this invention is, First-The long radiating
arm moving upon the column placed at the back of the bench with a shorter
radiating arm attached to this carrying a feed roller. Second-The adjustment &
ixing of the long radiating arm so that feeding roller may be brought to press
pon the timber being fed, in the most suitable position with relation to the saw.
Thirdly-The ready manner in which the whole may be swung out of the way at
he back of the bench and so leave the front of bench clear for ordinary purposes.
Dated this Tenth day of November 1890.
FREDERICK EVANS.
COMPLETE SPECIFICATION.
Improved Feed Motion for Circular Saw Benches.
FREDERICK EVANS Engineer, 14 Holly Grove Seaforth Lancashire, 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 relates to an improved method of applying a feed motion,
generally known as "roller" or "continuous" feed to circular saw benches and
the like. It consists of a hollow column A firmly fixed at the back of the bench
or behind the saw, this column is turned at its upper portion to receive an arm B,
this arm will radiate upon said column and may be fixed in any desired position by
[Price 6d.]

page_text: two screws as shown.
The other end of arm B projects to near front edge of bench,
to this end is attached a shorter ar C in such a manner by a jo it so that it will
swing on its vertical axis through about three fourths of a cirel, the free end of
this arm carries a vertical spindle projecting downwards to near the surface of the
saw bench top & carries a suitable feeding roller or rollers. Relving motion is
communicated to this roller by means of the bevel wheels & chain wheel shown
at D, this by means of an endless chain conveys motion to a similar wheel E
revolving about the axis forming the junction of arm C with arm B, to this
wheel E is attached a similar wheel F, which by means of another endless chain
communicates motion to the chain wheel G, which is attached to the upper end of
feeding roller spindle. Motion is communicated to the chain wheel H by the
chain J actuated by suitable gearing conveniently placed. It will now be seen that
feed roller may be driven in whatever position radiating arms may be moved, to
suit diameter of saw in use or timber being sawn. As the feeding roller revolves
it is kept pressed against the timber by rope attached to free end of short arm C
which passes over a sheave pulley K. Fig. 2 & has a suitable weight L. Fig. 2.
attached. It will also be seen that timber of varying thickness may be fed up to
the saw continuously, as the shorter arm radiating upon its axis admits of the
feeding roller accommodating itself to any thickness within its range, pressure
being obtained by the aforesaid rope & weight.
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, I declare what I
claim is :-
1-The long radiating arm swinging upon a vertical column placed at the back
of the bench, with a shorter radiating arm attached to this and carrying the feeding
roller or rollers.
2 The adjustment & fixing of the long arm upon the column so that feeding
roller may be brought to press upon the timber in the most suitable position with
relation to the saw.
Dated this Tenth day of August 1891.
FREDERICK EVANS,
Applicant.