An Improvement in Cold Iron and Steel Sawing Machines.
Year: 1889

page_text: Date of Application, 2nd Oct., 1889
Complete Specification. Left, 1st July, 1890-Accepted, 2nd Aug., 1890
PROVISIONAL SPECIFICATION.
An Improvement in Cold Iron and Steel Sawing Machines.
JOSEPH HILL, George Street Works, Derby, Engineer, & ISAAC HILL, George
Street Works, Derby, Engineer, do hereby declare the nature of this invention to be
as follows:-
This invention especially refers to the saw spindle which carries the Saw of Cold
Iron and Steel Sawing Machines, enabling the saw spindle with saw attached to be
extended outwards, or withdrawn nearer to the machine bed.
We form a saddle of desired shape and size, with two bearings with caps the
required diameter and length, we also prepare a steel sleeve or bush of any desired
length, which is to form a support and bearing for the saw spindle to revolve in ;
this steel sleeve is fitted with a conical bush. The len th of the sleeve is made as
required, according to the distance the saw is required to stand out, whilst the diameter
is also determined by the diameter of the saw spindle allowing a sufficient strongth for
stability and support of the saw spindle when extended, and at work.
The saw spindle is made the proper length to suit the extreme length of the bearings,
with an additional length to give support when the saw spindle extended, the spindle
is fitted in the sleeve so that it is allowed to revolve freely and kept in proper position
(after the spindle is passed into the sleeve) by circular adjusting locking nuts the
Spindle being screwed to receive them and are adjusted to give the right degree of
tightness on to the cone of the spindle.
The spindle fits the back bearing of the saddle, whilst the front bearing on saddle
receives the sleeve these bearings are provided with caps, the front one that clips the
sleeve is tightened down when the sleeve is passed out, and thus secures the sleeve and
holds it firin for work.
The driving of the saw spindle is by an arrangement of gearing. The driving
wheel on the saw spindle is held in its position by 2 brackets that fit into a groove
turned in the back of the wheel, whilst these 2 brackets are secured to the saddle
which carries the saw spindle. This wheel is also fitted with a feather key which
slides in a keyway cut in spindle. To prevent the sleeve from revolving we cut a
keyway on its top side, and fit a feather key in the cap of sleeve bearing.
The spindle is passed outward and withdrawn by means of screw and wheel.
1600
JOSEPH HILL.
ISAAC HILL.
COMPLETE SPECIFICATION.
An Improvement in Cold Iron and Steel Sawing Machines.
JOSEPH HILL, George Street Works, Derby, Engineer, and ISAAC HILL, George
Street Works, Derby, Engineer, 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 especially refers to the saw spindle, which carries the Saw of Cold
Iron and Steel Sawing Machines, enabling the saw spindle with saw attached, to be
extended outwards, or withdrawn nearer to the bed of the machine.
We form a saddle A Fig. 11 of the desired shape and size, with two bearings B & B¹
Fig. I, with caps 6' & Fig. I & II, the required diameter and length; we also
prepare a steel sleeve or bush C Fig. I & II, of any desired length, size, of any
section; round preferably, which is to form a support, and bearing for the saw spindle D
Fig. I & II to revolve in; this steel sleeve or bush O Fig. I & II is fitted with a
Din Cal

page_text: conical bush E Fig. I. The length of the sleeve or bush C Fig. I & II is made as
required, according to the distance the saw F Fig. I & II which is attached to the end
of the spindle, is required to stand out; whilst the diameter is also determined by the
diameter of the saw spindle D Fig. I, allowing a sufficient strength for stability, and
support of the saw spindle D Fig. I & II when extended, and at work.
The saw spindle D Fig. I & II is made the proper length to suit the extreme length
of the bearings B & B Fig. I, with an additional length to give support when the
saw spindle D Fig. I & II is extended; the spindle D Fig. I is fitted in the sleeve C
Fig. I & II, so that it will revolve freely; and is kept in proper position after the
said spindle D, is passed into the sleeve C Fig. I & II, by circular adjusting locking
nuts F1 Fig. I & II; the spindle D Fig. I & II being screwed to receive them, and
are adjusted to give the right degree of tightness on to the cone E Fig. I, of the saw
spindle D Fig. I & II.
The spindle D Fig. I & II fits the back bearing of the saddle B' Fig. I, whilst the
front bearing B of the saddle A Fig. 1, receives the sleeve C Fig. I & II, these
bearings are provided with caps & Fig. 1 & 11 the front one Fig. I & II,
that clips the sleeve C Fig. I & II is tightened down when the sleeve or bush c
Fig. I & II is passed out the required distance, and thus secures the sleeve, or bush c
Fig. I & II, and holds it firm for work.
The driving of the saw spindle D Fig. I & II, is by Hill's patent arrangement of
gearing, No. 11,758, 1888.
The driving wheel H Fig. I & II. on the saw spindle D Fig. I & II, held in its
position by 2 brackets J & J Fig. II and are secured to the saddle A Fig. II which
carries the saw spindle D.
This wheel H Fig. I & II is also fitted with a feather key K Fig. 1 which slides in
a keyway L Fig. 1, cut in the spindle D Fig. I & II on its top side, and fits a feather
key N lig. I in the cap Fig. 1 & II of sleeve bearing B Fig. 1.
The spindle is passed outward, & withdrawn by means of screw P Fig. I & II, &
wheel, star, or cross, P¹ Fig. I & II.
Having now particularly described, and ascertained the nature of our said inven-
tion, and in what manner the same is to he performed, we desire it to be under-
stood, that we do not restrict ourselves to the precise details now given, as in some
cases, mechanical equivalents may be employed without departing from the principles,
and leading characteristics of our invention, but what we claim as our invention is
The entire combination, as set forth, and illustrated, and especially applicable to
sawing machines, and to similar machines.
Dated this 1st day of July 1890.
JOSEPH HILL.
ISAAC HILL.