Year: 1888

page_text: Date of Application, 10th July, 1888
Specification Accepted, 17th Aug, 1888
A communication from abroad by JOHN ANDREW STEELE, of Minneapolis, in the
County of Hennepin, and State of Minnesota, United States of America,
Physician.
I, WILLIAM PHILLIPS THOMPSON, F.C.S., M.I.M.E. of the Agency for Foreign
Patent Solicitors, 6 Lord Street, Liverpool, and 6 Bank Street, Manchester, both in
the County of Lancaster, and 323, High Holborn in the County of Middlesex, Civil
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 :-
The invention relates to the construction of the pole of a tent whereby a portion of.
it can be used for a flue or chimney, and avoid the liability of burning or scorching.
the canvas, and consists generally in the construction and combination hereinafter
described and particularly pointed out in the claims.
In the drawings which form a part of this specification:
Figure 1 is a side elevation and partial section of a tent, showing the improvement
applied thereto.
Figure 2 is a section showing a modification in the construction of the tent.
Figure 3 is a section of a portion of the pole embodying the improvement.
Figure 4 is a detail.
Figure 5 is a longitudinal section of a tent showing a modification in the
construction of the poles.
Figure 6 is a perspective view of this modification, on an enlarged scale.
In the drawings, 2 represents a tent which may be of the style commonly known as
a "wall tent," as shown in Figures 1 and 5, or it may be the style known as.
"Sibley"
as shown in Figure 2.
In the style shown in Figures 1 and 5 the tent is supplied with the two end poles
or supports 4 and the ridge-pole 6, which form a frame over which the canvas.covering
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page_text: of the tent is secured. One of the end poles 4 is shortened at the top, and a hollow
metallic pipe or flue 8 is placed upon it, the lower end of the said pipe forming a
socket into which the pole is securely fastened, the pipe thus making a continuation of
the said pole which extends to any desired distance above the ridge-pole 6. An outer
casing 10 is placed around the pipe 8 and preferably extends from the point of inter-
section with the ridge-pole 6 downward a suitable distance within the tent, and this
casing may be securely braced and fastened to the pipe 8 by thimbles 12 placed at
intervals around the pipe, between it and the casing, and having bolts passing through
them and through the walls of the said pipe and secured by suitable nuts on the said
bolts. Other devices may be used for securing the casing to the pipe without
departing from the invention.
A branch pipe 14 is preferably connected with the pipe 8 at a short distance above
the end of the pole 4. This pipe passes through an opening in the casing 10 at the
side towards the interior of the tent, and is connected by means of suitable elbows and
pipe with the stove 16.
It is preferable to connect the ridge-pole 6 to the casing in such a manner that it
can be easily disconnected when the tent is taken down. A yoke or clamp 18 is
secured to the outer casing 10 and provided with inwardly projecting flanges 20 upon
the two sides and a stop or rest 22 at the bottom, forming a recess open at the top
between the said flanges, into which the outwardly flanged end support 24 secured
upon the ridge-pole, is inserted from the open top and rests upon the stop 22.
As the force exerted upon the ridge-pole when the tent is in position will always be
in a downward direction the said pole and casing, will be securely and firmly held
in their proper position. A support 26 may be placed upon the outer surface
of the casing 10 opposite the point where the ridge-pole is joined in order to
support the peak of the tent. A hole is cut in the canvas sufficiently large to
receive the casing 10, and the peak will then rest upon the ridge-pole 6, upon one
side of the casing, and upon the support 26 upon the other, allowing the said casing
to project through the upper portion of the tent and to communicate with the open
air. The end wall or fly 28 extends down from the support 26, and forms a covering
for this portion of the tent, and is protected from coming in contact with the heated
flue 8, by the casing 10 which forms an interposing air space between the said pipe
and the canvas. The heated surface of the pipe 8 will cause an upward draught
or passage of air through this space, and prevent the heating of the said outer
case, and at the same time furnish a means of ventilation for the interior of the
tent, and a firm support is made for the stove-pipe.
The stove-pipe which it is preferable to use, is formed in sections as 30, 32, and 34,-
each section is made slightly cone-shaped. The lower section projects into the section
above, this section into the next, and so on, and the elbow 36 is secured to the upper
section and to the branch pipe 14. When it is desired to take down and pack the
pipe, the section 32 can be placed inside the section 30, and the section 34 inside the
section 32. This enables the pipe to be packed closely.
Any number of sections can be used and will take up no more room in packing
than a single section. By providing the firm support made by the pipe 8 secured to
the pole as described, the pipe is held as firmly and securely as in any ordinary stove,
and without liability of being displaced, or being blown down as is the case when the
pipe is extended through the canvas of the tent.
A modification of the improvement is shown in Figure 2 as adapted for use in a
"Sibley" tent. In this construction, as there are no end walls to protect, and no
ridge-pole to attach, the outer casing can be shortened, making it simply a ring for
the protection of the canvas, to which the said canvas is secured. In other respects it
is substantially similar to that already described.
In Figure 5 a modification in the construction is shown by which the use of
the wooden portion of the pole 4 can be avoided. The pipe. 8 extends down to the
ground and the branch pipe 14 connects with the pipe 8 a short distance above the
top of the stove, so that an ordinary elbow can be used to couple the pipe together.
The outer casing is extended downward to a point below the branch pipe forming an

page_text: air space between the pipe and casing which protects the canvas from the heat
generated by the pipe 8, as it is only necessary to provide this protection at the side
of the pipe which is liable to come in contact with the canvas. For convenience in
shipping and to save weight, it may be preferable to construct the air space only upon
this side, and in Figures 5 and 6 the pipe is shown constructed in this manner."
The casing 10 encircles the pipe 8 at the top where it projects through the canvas,
and for a short distance below, in order to thoroughly protect it, but below this point
one half of the casing is cut away and the opposite edges rivetted to the pipe 8-
forming an air space 40 in front of the said pipe.
The ridge-pole 6 is made of metal, in which case angle iron is preferably used, made
in two sections and fastened together by a pin 41, held upon one section which fits
into a slot in the opposite section, the ridge-pole is then easily taken apart for
shipment. The two sections are compactly placed together and inserted in the space 40
at the front of the pipe 8, and the whole will occupy as little room as the ordinary
tent poles.
Having now particularly described and ascertained the nature of the said inven-
tion, and in what manner the same is to be performed, as communicated to me by
my foreign correspondent, I declare that what I claim is :-
1. In a tent, the combination with the upright pole 4, of the pipe 8 secured to
said pole, the outer casing 10 secured to and surrounding the pipe 8 and forming an
interposed air space between said pipe and the canvas covering of the tent, substantially
as described.
2. In a tent, the combination with the upright pole 4, of the pipe 8 secured to the
said pole, the outer casing 10 secured to and surrounding the pipe 8, and forming an
interposed air space between said pipe and the canvas covering of the tent and the
ridge-pole 6 secured to said casing 10, substantially as described.
3. In a tent, the combination with the pole 4 and the pipe 8 secured thereto, the
outer casing 10 surrounding said pipe, and the ridge-pole 6, secured to said casing 10,
of the branch pipe 14 connected to the pipe 8, the elbow 36, and the sections of pipe
secured thereto, or arranged to be placed one inside the other, substantially as
described.
4. A tent pole, consisting of a pipe or flue for conveying off the smoke and gases,
and an outer casing surrounding or partially surrounding said pipe, and forming an
interposed air space between the interior heated pipe and the canvas, substantially as
described.
5. In a tent, the ridge-pole 6 constructed of two or more sections of angle bar, in
combination with the upright pole to which it is detachably secured, and the recess 40
formed between the inner pipe and the casing for the reception of the said ridge-pole,
substantially as described.
Dadth: 0th day of Tu 1000