An Improved Tue-iron.
Year: 1889

page_text: Date of Application, 23rd Sept., 1889
Complete Specification Left, 21st June, 1890-Accepted, 23rd Aug., 1890
An Improved Tue-iron.
I, JAMES MCDERMOTT of Castlefin, Co. Donegal Ireland Implement Maker, do hereby
declare the nature of this invention to be as follows:-.
This invention consists of a disc shaped wind chest eight inches in diameter and
three inches in depth bearing a hollow cone in centre with a slide.at the base which
can be easily drawn out when in the act of cleaning the fire or otherwise and which can
be shut up in a moment.
The aforementioned disc has a slip cover on top through which the blast is vertically
introduced into the lower portion of the fire.
The centre cone being three sixteenths of an inch lower than the top cover through
which space the wind is forced through the central hole in cover which hole is-two and
three quarters of an inch bore.
By drawing the aforementioned slide the dust and cinder can be all put down through
this hole into a pit beneath the fire-place. The slide can then be shut and .the blast
turned on again. It can be easily seen that by this invention half the time is saved
as its heating powers are double those of the ordinary Tue-irons. There can also be
applied an extension tube for bending or flanging purposes, which consists of a tube
with several holes placed into the centre blast hole through which the wind can course
along to any required point.
Dated this 20th day of September 1889.
SPECIFICATION.
COMPLETE
An Improved Tue-iron.
JAMES MCDERMOTT Castlefin Co. Donegal Ireland Implement Maker 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:-
My Invention which relates to improvements in the construction of Tue-irons for
heating iron in black-smiths fires which has for its object greater heating capacity
than any existing arrangement.
The Tue-iron as constructed in accordance with this Invention consists in a round
wind chest or air chamber 3 inches in diameter 3 inches deep bearing a hollow cone
in centre with a slip cover on top and slide at the bottom. It has a direct hole which
lets the accumilated cinder (or dross) drop when the slide is drawn to a pit or ash pan
beneith the hearth. The plop cover bas a hole in centre two & three quarters inches
corresponding with the hole in the centre of the cone. This cover is elevated threo
sixteenths of an inch above the centre cone through which space the wind is forced
out of the air-chamber, into the fire. In order that my said Invention may be properly
understood and readily carried into effect I will now proceed to describe the drawings
hereunto annexed.
Figure 1 is a side elevation of a Tue-iron constructed according to and constituting
my present Invention. The letter A shows a nuzzle which ajusts its self to the bellows
and conducts the wind into the wind chest (or air chamber) B. and is forced out into
the fire at D. G represents the lid or slip cover which can be taken off and put on
in a moment. Fshows the grooves for the slider.
I now proceed to side section Figure 2. A shows a nuzzle as a conductor into
wind chest or air chamber B. out of which the wind is forced at CC into the fire at D.

page_text: EE shows the direct passage for the cinders down to the bottom of the pit or ash pan
below the slider F. G G represents the cover with groove to fit on to air chamber.
Plan Fig. 3 shows the bottom portion. G G shows bottom portion rested on any
kind of frame adapted for its support. I shows slide which when drawn continues
the direct hole marked D.
Figure 4 plan without lid. BB the air chamber. E E the cone with direct hole D
when slider F is drawn.
Having now particularly described and ascertained the nature of my said Inven-
tion and in what manner the same is to be performed I declare that what I
claim is
First. The general arrangement and combination of parts constuting the improved
Tue-iron substantially as hereinbefore set forth with reference to the annexed
drawings.
Second. The arrangement of the wind chest (or air chamber) B B in combination
with the outlet at CC into the bottom of the fire at D. substantially as and for the
purposes herein before specified with reference the annexed drawings.
Third. The direct hole from D down through E E and when slider F is drawn
allows the cinders or dross to pass into the pit or ash pan beneath the hearth substan-
tially as and for the purpose set forth with reference to the annexed drawings.
"Dated this 18th day of June 1890.
JAMES MCDERMOTT.