IMPROVEMENTS IN COLD STEEL, AND IRON SAWING MACHINES
Year: 1885

page_text: ISAAC HILL, George Street Derby, in the County of Derbyshire, Engineer and
Tool Maker, do hereby declare the nature of my invention for IMPROVEMENTS IN
COLD STEEL, AND IRON SAWING MACHINES, to be as follows:-
My present Invention is an arrangement by which I am enabled to saw off cold,
the risers or runner heads which are used in making Steel and other castings, of
large or small dimensions; quite flush or level with the surface of the casting, this
work is now done by the hammer and the chisel by hand, or drilled off by hand.
My present existing machine upon which I desire to attach my improved method,
or arrangement; is composed of a suitable bed and a moving saddle, carrying a
steel saw spindle, this saddle is moved along its bed by a screw, and the speeds
are so arranged that the feed of the cut is actuated by a worm, and wheel; the
driving of which is also arranged so that a different rate of feed may be obtained,
suitable for various kinds of work, either heavy or light.
The saws are fixed to the now existing saw spindle by the usual means
viz: a disc made in the solid of the spindle, and a loose washer tightening up
the saw with a large nut, the saw being between the two; the disc and washer.
My Improvement consists of the large dise or washer that is made solid with
the spindle, to be of larger diamiter, and to have the said disc about one inch in
thickness, the spindle end is left long enough, to form a short projection of two, or
two and a half inches in diamiter, and three quarters of an inch in length: this
projection is so provided so as to receive the saw, so that a hole of the same
diamiter being made in the exact centre of the saw, and when the saw is adjusted,
or put on to this said projection; this projection gives and affords a provision which
takes the pressure which is exerted upon the saw by the traverse of the feed of the
machine.
The saws are arranged to have any number of holes made in them, part of these
holes are countersunk, so that they will receive the countersunk headed bolts made
the proper taper in the heads.
I also make a loose steel washer or disc of the same diamiter as the steel saw
spindle disc; and I form in this said disc, a corresponding number of holes as in
the saw. One half of these holes are formed to receive rivits; and to the saw this
steel plate or loose steel disc is rivited by " or " rivits; the remaining half of
tle holes are drilled same as those already in the saw; and then the countersink

page_text: is made half way through the washer, so that the countersunk head of the bolt is
entirely level with the face of the saw, and half way through the steel disc that is
rivited to the saw; this steel disc, plate, or washer that is rivited to the saw,
is added to the said saw for the purpose of giving strength and greater resisting
power; when the saw is put to severe work as in cutting large sizes of steel (cold).
I use any number of countersunk headed bolts that may be required, and holes
are prepared in the solid steel disc of the steel saw spindle; and each bolt being
tightened up by a nut, and spanner, the saw cannot revolve & is made secure to
the saw spindle with one side of the saw perfectly flush, or plain or level.
In addition to the above I also make and provide a long extra table of special
design for bolting down tubes, or hollow work, or for heavy work; supported from
each end of the machine, or bed of the saw machine; and so arranged that the
table is very close to the saw, and thus giving a bearing for the work being cut,
besides affording a greater certainty of the work being true.
Some of the advantages are that any projecting peices may be cut off quite flush,
this is a great advantage in steel foundries and other works.
Much time is saved and the work is done much better.
Also that by the additional table the work may be cut at any angle, and a safe
guard for the machine against accident of heavy work falling on to the machine
thereby breaking the same, also a sure support for heavy work to be cut.
Dated this twenty fourth of November, Eighteen hundred and eighty five.

page_text: ISAAC HILL, George Street, Derby, in the County of Derbyshire, Engineer and
Tool maker, do hereby declare the nature of my invention for IMPROVEMENTS IN
COLD STEEL, AND IRON SAWING MACHINE and in what manner the same is to
be performed, to be particularly described and ascertained in and by the following
statement:
My present Invention is an arrangment by which I am enabled to cut off cold,
the riser or runner heads, which are used in making Steel, and other castings of
large or small dimensions, quite flush or level with the surface of the casting.
This work is now done by the hammer and chisel by hand, or drilled off by hand,
or turned or machined off, which takes a great amount of time, and labour
expended.
My present existing machine upon which I desire to attach my improved method
or arrangement, is composed of a suitable bed and a moving saddle, carrying a steel
saw-spindle, this saddle is moved along its bed by a screw, and the feeds are so
arranged, that the feed of the cut is actuated by a worm and wheel, the driving of
which is also arranged, so that a different rate of feed may be obtained, suitable
for various kinds of work, either heavy or light. The saws being fixed to the saw
spindle, by the usual means viz:-a disc made in the solid of the spindle, and a
loose washer tightening up the saw with a large nut, the saw being between the
two, the disc, & the washer.
In order that my present invention may be more easily, and readily understood
I have anexed the accompanying drawings, Fig. 1. 2 & 3 of which the figures and
numerials have reference to. Fig. 1 is an end elevation, Fig. 2, plan, or front
view of saw showing bolt heads, and rivits Fig. 3 is a section showing the bolts
and their heads etc.
b
My Improvement consists of the large disc a Fig. 1. 3 or washer, that is made
solid with the spindle a Fig. 1 & 3, to be of larger diamiter, and to have the said
disc a Fig. 1 & 3 about one inch in thickness, the spindle is left long enough to
form a short projection 6 Fig. 1. 2 & 3, of two or two and a half inches in diamiter,
and three quarters of an inch in length; this projection b Fig. 1. 2 & 3 is so
provided to receive the saw, w Fig. 1. 2 & 3, so that a hole of the same diamiter
being made in the exact centre of the saw w Fig. 1. 2 & 3, and when the saw w is
adjusted or put on to this said projection b Fig. 1. 2 & 3, this projection b gives,
and affords a provision which takes the pressure which is exerted upon the saw w
when cutting; by the traverse of the feed of the machine, and the metal being cut.
The saw w Fig. 1. 2 & 3 is arranged to have any number of holes made in it,
part of these are countersunk so that they will receive the countersunk headed
bolts Figs. 2. 3 1. 2. 3. 4. 5. 6, made the proper taper in the heads e ele e¹¹¹ Fig. 3.
I also make a loose steel washer or disc c. Fig. 1 & 3 of the same diamiter as the
steel saw spindle disc a Fig. 1 & 3, and I form in this said disc c a corresponding
number of holes in the saw w One half of these holes are formed to receive
rivits d d d d
Fig. 1 & 2, and to the saw w this steel plate or loose
steel disc c Fig. 1 & 2 is rivited by or ", or suitable size of rivit d, the

page_text: remaining half of the holes are drilled same as those already in the saw wand then
the countersunk is made half-way through the washer c Fig. 1 & 2, so that the
countersunk heads of the bolts 1. 2. 3. 4. 5. 6 Fig. 2 are entirely level with the
face of the saw (see Fig. 3) and halfway through the steel disc or washer c Fig. 1.3
that is rivited to the saw w This steel disc, plate, or washer c that is rivited to
the saw w is added to the said saw w for the purpose of giving strength, and
greater resistance when the saw is put to severe work as in cutting large peices of
cold steel.
Some of the advantages are that any projecting peices may be cut off quite flush;
this is a great advantage in steel foundries, or for other work requiring similar
cutting. Much time is saved and the work is done much better.
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
1st. The combination, and application as set forth, and illustrated; of giving
and attaining a flush or level side to the saw free from projections on the work
side of the saw, which enables runners, and risers, or gates, on steel and other
castings to be sawn off quite flush with the casting or for other work requiring
Bimilar operation.
Amement
Tichon landand and sight i