Improvements in the Mode or Means for Joining Lengths of Tubing Together for Forming Poles, Masts, Ventilating Shafts, and such like Erections.
Year: 1896

page_text: Date of Application, 3rd July, 1896
Complete Specification Left, 2nd Apr., 1897-Accepted, 29th May, 1897
PROVISIONAL SPECIFICATION.
Improvements in the Mode or Means for Joining Lengths of Tubing
Together for Forming Poles, Masts, Ventilating Shafts, and such
like Erections.
We JOHN SPENCER, THOMAS HARRIS SPENCER and HERBERT SPENCER
SMALLMAN all of Globe Tube Works, Wednesbury, in the County of Stafford
Manufacturers do hereby declare the nature of our said invention to be as follows:-
Our invention has for its object improvements in the mode or means for joining
lengths of tubing together for forming poles, masts, ventilating shafts and such
like erections which when securely joined together by our mode and means become
quite strong and the equivalent of a tapered pole. By our invention we can deal
with various lengths and diameters of tubing which are parallel as well as with
tapered lengths or a combination of both in one erection.
The base or larger tube is secured into a foundation plate or flange suitable for
the particular purpose for which it is to be used. The upper end of the tube has
shrunk or otherwise secured upon it a bead or ring which serves to strengthen the
upper end and also to form a finish. We then form an inner casing for the top end
either in one casting or formation or in segments and this is finished at the top with
suitable moulding which forms a shoulder to rest upon the upper or beaded edge of
the outer tube and a ring is here inserted to seal the junction when necessary. The
inside of this joint or junction piece is made of such an internal diameter as to
receive the next or smaller length of tube which when it is lowered to the desired
depth rests upon an internal flange of the junction piece and no screws are required.
When this junction piece is made in sections the spaces may be filled up with lead
cement or other material of a suitable nature. It will be understood that any
number of lengths of tubing may in this way be built one upon the other without
any danger of them telescoping.
We may make our intermediate or junction tube or sections or hook pieces from
any metal and without the ornamentation aforesaid such for instance as by staving
up the ends to form the hook pieces or projections or by shrinking or screwing
collars thereon. We may also form the junction by shrinking or otherwise
fastening a collar or collars on the smaller diameter lengths upon which such
lengths are suspended and by which the weight is sustained.
Lengths of tubing so joined whether parallel lengths or tapered or a combination
of both will be found to possess considerable strength and stiffness to resist side
and other strains and are therefore very suitable for such like purposes as
overhead electrical tramways, are light poles, and posts and masts for various
purposes.
Dated this 2nd day of Lule 1896
GEORGE BARKER,
77 Colmore Row, Birmingham, Agent for Applicants

page_text: Improvements in the Mode or Means for Joining Lengths of Tubing
Together for Forming Poles, Masts, Ventilating Shafts, and such
like Erections.
We, JOHN SPENCER, THOMAS HARRIS SPENCER, and HERBERT SPENCER
SMALLMAN, all of Globe Tube Works, Wednesbury, in the County of Stafford,
Manufacturers, do hereby declare the nature of our said invention and in what manner
the same is to be performed to be particularly described and ascertained in and by
the following statement :-
Our invention has for its object improvements in the mode or means for joining
lengths of tubing together for forming poles, masts, ventilating shafts and such like
erections, which when securely joined together by our mode and means become
quite strong and the equivalent of a tapered pole. By our invention we can deal
with various lengths and diameters of tubing which are parallel as well as with
tapered lengths or a combination of both in one erection.
The base or larger tube is secured into a foundation plate or flange suitable for
the particular purpose for which it is to be used. The upper end of the tube has
shrunk or otherwise secured upon it a bead or ring which serves to strengthen the
upper end and also to form a finish. We then form an inner casing for the top end
either in one casting or formation or in segments and this is finished at the top with
suitable moulding which forms a shoulder to rest upon the upper or beaded edge of
the outer tube and a ring is here inserted to seal the junction when necessary.
The inside of this joint or junction piece is made of such an internal diameter as to
receive the next or smaller length of tube, which when it is lowered to the desired
depth rests upon an internal flange of the junction piece and no screws are required.
When this junction piece is made in sections the spaces may be filled up with lead,
cement, or other material of a suitable nature. It will be understood that any
number of lengths of tubing may in this way be built one upon the other without
any danger of them telescoping.
We may make our intermediate or junction tube or sections or hook pieces from
any metal and without the ornamentation aforesaid, such for instance as by staving
up the ends to form the hook pieces or projections or by shrinking or screwing
collars thereon. We may also form the junction by shrinking or otherwise
fastening a collar or collars on the smaller diameter lengths, upon which, such
lengths are suspended and by which the weight is sustained.
In order that our invention may be clearly understood and easily carried into
practical effect we have appended hereunto a double sized sheet of drawings upon
which we have illustrated several examples of our improved method of joining
lengths of tubing together.
Figure 1 is a sectional elevation showing a part of two lengths of tubing joined
together according to our invention.
Figure 2 is a part sectional elevation showing the top end of the bottom piece of
tube and the top of the junction piece ornamented.
Figure 3 is a part sectional elevation showing a modification of Figures 1 and 2.
Figures 4, 5 and 6 are further modifications of our method of joining two lengths
of tubing.
In carrying our invention into practice we secure the base or larger tube A to a
foundation plate or flange suitable for the purpose for which it is to be used.
We afterwards take the short or intermediate tube C and form the outwardly
turned flange cat the top end and the inwardly turned flange at the bottomn
end. These flanges may be formed by staving up the ends or by shrinking or

page_text: screwing collars thereon. This intermediate tube is shrunk or otherwise fixed on
to the bottom end of the tube B, the base of which rests upon the flange, and
then the intermediate tube C is inserted or shrunk into the top end of the tabe A,
the flange c' taking its bearing or resting upon the top edge of the tube, by which
means the two lengths of tube A and B are securely joined together, and any
number of these tubes may be built up and secured together in this manner, thus
forming a complete pole made up of parallel tube, but reducing in diameter from
the base to the top. In some cases we may shrink or otherwise secure to the top
of the tube A the bead or ring a', and the top flange of the intermediate tube
may be formed with the moulding or otherwise suitably ornamented, thus giving
a better finish to the junctions of the tubes as shown at Figure 2.1
At Figure 3 we have shown a modification of this method of joining the tubes
together by means of an intermediate tube or sleeve. In this case we form the
intermediate sleeve C in two or more sections, the top edge c of each section
overlapping the top edge of the tube A. The spaces between these sleeves may
be filled up with cement, lead or other material. Or instead of using the
intermediate sleeve or sleeves we may secure the flange or ring to the tube B,
so that when the end of this tube is inserted into the tube A the flange or
ring takes its bearing or rests upon the edge of this tube, thus securing the
two lengths of tube together as clearly shown at Figure +.
At Figures 5 and 6 we have shown further modifications of our invention.
Referring to Figure 5 the rings or flanges D and D' are secured to or formed
out of the tube B and in the interior of the top end of the tube A we form the
projections or flanges D and D. These flanges and the flanges on the tube B
are turned with a taper so that when the end of the tube B is inserted into the,
top of the tube A the flange D fits accurately into the flange D' and the flange D'
into the flange D³, in which position they are securely held by reason of the
tapering of the flanges. In the method as shown at Figure 6, instead of forming
two or more flanges we form the continuous tapering flange or collar E on the
bottom end of the tube B and the internal tapering flange E' in the top end of the
tube A.
Lengths of tubing so joined, whether parallel lengths or tapered or a com-
bination of hoth, will be found to possess considerable strength and stiffness to
resist side and other strains, and are therefore very suitable for such like purposes
as overhead electrical tramways, are light poles and posts and masts for various
purposes.
Having now particularly described and ascertained the nature of our said inven-"
tion and in what manner the same is to be performed we declare that what
we claim is :-
CLAIMS.
First. The improvements in the mode and means for joining lengths of tubing
together, whether parallel or taper or both, for forming poles, masts, ventilating
shafts, and such like erections, consisting essentially of au intermediate tube or
sleeve or sleeves such as C formed with an external and internal flange for supporting
or carrying the adjacent length of tubing in the manner substantially as herein-
before described and as shown upon the accompanying sheet of drawings at
Figures 1 to 3 inclusive.
Second. Joining lengths of tubing whether parallel or taper by means of a
flange or collar formed out of or secured to the smaller diameter tube and resting
upon the top edge of the larger diameter tube in the manner substantially as
bereinbefore described and as shown at Figure 4 on the accompanying sheet of
drawings.
Third. Joining lengths of tubing whether parallel or taper by forming one or
more external tapering flanges on the end of the smaller diameter tube fitting into
one or mere internal tapering flanges or projections in the manner substantially as

page_text: herein before described and as shown at Figures 5 and 6 on the accompanying sheet
of drawings.
Dated this 1st day of April 1897.
GEORGE BARKER,
77, Colmore Row, Birmingham, Agent for Applicants.