IMPROVE. MENTS IN SAW SPINDLES
Year: 1885

page_text: I JOSEPH TAYLOR of Adelaide Works, Sheffield, in the County of York Saw
Manufacturer do hereby declare the nature of my said invention for IMPROVE.
MENTS IN SAW SPINDLES to be as follows:-
.
02:
My invention relates to improvements in the manufacture of Spindles for Circular
Saws, having for its object a method of keeping the centre of the saw, cool, and
thereby preventing what is known as buckling, and it applies more particularly to
the collars of such spindles, between which the saw is held and gripped.
It consists in making the said collars with grooves, slots, and openings so arranged
that the air can obtain access to a considerable area of the surface of the saw
usually covered by the face of the collar.
I accomplish this by boring or casting holes, from the outside to the inside face
of the collar, opening into radial or other shaped grooves, or annular channels
preferably so formed as to allow and induce the air to circulate against the portion
of the saw to which it has access.
I do not bind myself to the position or number of the holes or entrances, nor to
the configuration of the internal grooves,
..

page_text: I, JOSEPH TAYLOR of Adelaide Works, Sheffield in the County of York Saw
Manufacturer do hereby declare the nature of my invention for IMPROVEMENTS
IN SAW SPINDLES and in what manner the same is to be performed, to be
particularly described and ascertained in and by the following statement, that is
to say:
My invention relates to improvements in the manufacture of Saw Spindles for
circular saws, having for its object a method for keeping the centre of the saw
cool, and thereby preventing what is known as "buckling," which causes the saw
to run untrue, and it refers more particularly to the construction of the Collars of
the spindle, between which the saw is gripped.
It consists in making the said collars with grooves, slots or air courses so formed
in the faces of the collars as to permit free access for air, to the central part of
the saw, and in order that the invention may be understood I have annexed a sheet
of explanatory drawings in which similar letters of reference indicate similar parts
in any of the figures in which they occur.
Fig. 1, represents the collar end of a Saw Spindle, with half the collars shown in
section.
Fig. 2, internal face of a Collar plate.
Fig. 3, modification shown in section.
Fig. 4, end view of same.
In carrying out my invention I cast, turn, or otherwise make or form suitable
grooves, slots, or openings, upon or through the collar plates, preferably consisting
of one or more annular grooves in connection with a series of radial grooves either
straight or curved, and opening out in the periphery of the collars in such a manner
as to allow and (when the spindle is revolving) to induce the air to enter and
circulate against the exposed surface of the sawplate in the radial and other
channels and grooves.
In Figs 1 & 2-A is the spindle B & B¹ are the collar plates, B is usually
secured to the spindle, B¹ being removable, C is the sawplate. The top half of the
collar plates in Fig. 1, are shown in section, D, D, are openings for air, E is an
annular groove, and F, F, F, are radial channels opening into the annular groove
from the outside.
Figs 3 and 4, show a modification in which air is admitted by, or expelled from,
a hole G, bored up the end of the spindle A, and communicating through one or
more transverse holes H, H, with the various air channels in the Collar plates as
described.
It will be seen that the number and arrangement of the channels or grooves may
be varied, and therefore I do not bind myself to any particular number or to the
exact arrangement shown in the drawings.

page_text: 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 Circular Saw Spindles, constructing the Collar plates with internal air passages
channels or grooves, communicating with the outer air, for the purpose specified,
and substantially as hereinbefore described and illustrated.
ROBT F. DRURY,
Agent for the Applicant.