Year: 1898

page_text: Date of Application, 19th July, 1898
Complete Specification Left 18th Apr. 1899-Accented 15th July 1800
MAJOR HOLLINGWORTH, 57, Firth Street, Laisterdyke, Bradford, Mechanic,
do hereby declare the nature of this invention to be as follows:-
The object of my invention is to facilitate the cutting out of hand holes, or
man holes, in iron or steel plates as used in the construction of steam boilers,
tanks, or castings.
In the ordinary course the holes are marked out in the desired position, and a
number of holes are drilled or punched around the radius representing the hole
to be cut out.
When the holes are drilled, or punched a man cuts out the plate with a
hammer and chisel and also cuts away the pieces of plate that are left around
the edge of the hole with a hammer and chisel.
My invention obviates this, and permits the work being done in a more expe-
ditious and accurate manner.
To accomplish this I employ a spindle having a hole cut in the bottom portion
of it, into which hole I fit a flat piece of steel. This flat piece of steel being
at right angles to the spindle and fixed firmly into the spindle. This flat piece
of steel or beam projects on one side of spindle sufficient to allow the cutting
tool to be moved from one end to the other, in accordance as it is desired to cut
out a small or large hole in the plate or casting.
The cutting tool being fixed firmly into a sliding box which is moved along
the flat piece of steel or beam by means of a screw which works into a nut fixed
into the sliding box.
This flat piece of steel or beam being graduated in inches on the front side
of it, and the sliding box which holds the cutting tool having a portion of its
front part cut away, so that the graduated beam is visible as the cutting tool is
worked from one end to the other.
Thus admitting of the tool being set at a glance, to any size hole, up to the
capacity of the tool.
This apparatus or tool is meant to be used in a drilling machine suitable for
the work.
By this apparatus I am enabled to cut out holes in plates or castings, quicker
and more accurate, than by the methods at present in use.
Thereby saving both time and money..
Dated this 18th day of Tuly 1808

page_text: An Improved Tool for Cutting Holes in Boiler Plates or Castings.
I, MAJOR HOLLINGWORTH, 57, Firth Street, Laisterdyke, Bradford, Yorkshire,
Mechanic, 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:-
י.
My invention relates to an improved tool. for cutting holes in boiler plates or
castings, and it has for its object to construct a tool or apparatus of this class by
means of which the holes may be cut out perfectly round and and clean, and
reducing the cost of maintainence, of this class of tool to the lowest possible
point.
My invention consists of a spindle with a hole cut in the bottom portion of
it, into which hole I fit a flat piece of steel or beam this flat piece of steel or
beam being fixed firmly at right angles into the aforesaid spindle.
This flat piece of steel or beam projects on one side of spindle sufficient to
allow the cutting tool to be moved from one end to the other in accordance as it
is desired to cut out a small or large hole in the plate or casting.
The cutting tool being fixed firmly into a tool box which is moved along the
flat piece of steel or beam by means of a screw, which works into a nut fixed
into the sliding tool box.
This flat piece of steel or beam being graduated into inches on the front side
of it, and the sliding box which holds the cutting tool having a portion of its
front part cut away so that the graduated beam is visible as the cutting tool is
moved from one end to the other. This tool or apparatus is meant to be used
in a drilling machine suitable for the work.
In the drawing.
Fig. 1 is a vertical sectional view showing the tool as when in use.
Fig. 2 is a plan of same.
Fig. 3 represents the cutting tool.
Fig. represents a side view of same.
Fig. 5 represents the drill for drilling out the hole in centre of plate or casting,
it then acts as a stay for the cutting tool Figs. 3 & 4.
Like numerals of reference indicate like parts in all the figures.
1 designates the spindle, 2 flat piece of steel or beam, 3 sliding tool box, 4 drill
for drilling centre hole, 5 screw which moves sliding tool box, 6 small hand-
wheel fixed on screw for operating same, 7 part of cutter box cut away thus
allowing the graduated beam to be visible, 8 cutter, 9 screw for fixing cutter in
box, 10 serew for fixing small handwheel in position on screw, 11 cotter for
fixing flat piece of steel or beam into spindle, 12 screwed portion of drill for
holding same in position 13 nut which fits onto screwed part of cotter.
The operation of this invention and its advantages will be readily understood
from the foregoing description taken in connection with the drawing hereto
annexed by those skilled in the art to- which it appertains.
I have in the foregoing described what I consider to be the preferred con-
struction of my invention but I desire it to be understood that I do not limit
myself to the precise details of construction herein set forth but reserve the
right to any changes and modifications which may be resorted to without
departing from the spirit of my invention.

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;
―
1. In a tool for cutting holes in boiler plates or castings, the combination of
a spindle and beam, adapted to be used in a drilling machine.
2. In a tool for cutting holes in boiler plates or castings, the combination with
aforesaid spindle and beam of a radially adjustable cutter.
3. In a tool of the class described the combination of a spindle and beam and
radially adjustable cutter with a drill fixed into aforesaid spindle.
4. In a tool of the class described the combination with a spindle and beam
and radially adjustable cutter and drill, with the graduating into inches of the
aforesaid beam.
1000