onducting wires.
Year: 1885

page_text: onducting wires.
I, CHARLES DENTON ABEL of N° 28 Southampton Buildings, Chancery Lane in
the County of Middlesex, Consulting Engineer and Patent Agent do hereby declare
the nature of this invention to be as follows:-
This invention relates to an improved construction of posts or supports for
electrical conducting wires, whereby these are formed of four angle irons arranged
in pyramidal form, and, where necessary, constructed in separate lengths of variable
section, that are secured together without bolts or other special fastenings, so that
the supports are readily transportable, without requiring skilled labour or special
tools for their erection. For this purpose the posts are constructed of four
longitudinal angle irons, maintained at a certain distance apart by means of.
distance pieces at the lower part of the post and made to approach each other
gradually towards the upper part until they meet, so as to form a cross shaped
section, with or without the interposition of strengthening plates, while the
extreme upper end is formed by stopping short two of the angle irons at a certain
distance from the end and only continuing two of them, fixed back to back; by
this pyramid-like mode of construction the posts are capable of being rendered of
equal strength throughout their length relatively to the strains they have to
withstand.
The distance pieces are also made to vary in their construction according to the.
height at which they are employed; thus for the lower parts they may be made as
castings, having recesses into which the several angle irons fit, or of frames built..
up of plates and angle iron or of angle iron only, while for the upper parts they
may consist simply of flat plates that pass across from one angle iron to another.
The joints of the separate lengths are made by fixing within the space between
the ends of the four angle irons of the lower length a tennon of corresponding cross.
shaped section, formed either of a solid wrought iron forging, or of four pieces of,
angle iron fixed together in cross form. The space between the four angle irons of
077

page_text: the lower end of the upper length corresponds exactly with the shape of this
section, so that the tennon will fit into the space and thus hold the parts securely
together. The said lower ends of the angle irons are secured together in the said
position, firstly by a distance piece immediately above the end of the tennon, aud
secondly by a metal hoop surrounding their extremities.
For fixing the insulators to the posts, the metal brackets carrying the same may
either be fixed directly to the angle irons themselves, or to the projecting ends of
plates secured between the angle irons.
The part of the post that is sunk below the ground is left open so that the earth
can penetrate between the angle irons, with the exception of a short distance above
and below ground line, where the space is closed in by a framework of plates; the
extreme lower ends of the angle irons are also connected by distance pieces.
Dated this 23rd day of November 1885
ABEL & IMRAY,
Agents for the Applicant.
An Improved Construction of Posts or Supports for Electrical
Conducting Wires.
I, CHARLES DENTON ABEL of N° 28 Southampton Buildings, Chancery Lane in
the County of Middlesex Consulting Engineer and Patent Agent 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:
This invention relates to an improved construction of posts or supports for
electrical conducting wires, whereby these are formed of four angle irons arranged
in pyramidal form, and where necessary, constructed in separate lengths of variable
section, that are secured together without bolts or other special fastenings, so that
the supports are readily transportable, without requiring skilled labour or special
tools for their erection. For this purpose the posts are constructed of four
longitudinal angle irons, maintained at a certain distance apart by means of
distance pieces at the lower part of the post and made to approach each other
gradually towards the upper part until they meet, so as to form a cross shaped
section, with or without the interposition of strengthening plates, while the
extreme upper end is formed by stopping short two of the angle irons at a certain
distance from the end and only continuing two of them, fixed back to back; by
this pyramid-like mode of construction the posts are capable of being rendered
of equal strength throughout their length relatively to the strains they have to
withstand.
1
☑a!

page_text: The distance pieces are also made to vary in their construction according to the
height at which they are employed; thus for the lower parts they may be made as
castings, having recesses into which the several angle irons fit, or of frames built
op of plates and angle iron or of angle iron only, while for the upper parts they
may consist simply of flat plates that pass across from one angle iron to another.
The joints of the separate lengths are made by fixing within the space between
the ends, of the four angle irons of the lower length a tennon of corresponding cross
shaped section, formed either of a solid, wrought iron forging, or of four pieces of
angle iron fixed together in cross form. The space between the four angle irons
of the lower end of the upper length corresponds exactly with the shape of this
section, so that the tenon will fit into the space and thus hold the parts securely
together. The said lower ends of the angle irons are secured together in the said
position, firstly by a distance piece immediately above the end of the tenon, and
secondly by a metal hoop surrounding their extremities.
:
For fixing the insulators to the posts, the metal brackets carrying the same may
either be fixed directly to the angle irons themselves, or to the projecting ends of
plates secured between the angle irons.
The part of the post that is sunk below the ground is left open so that the earth
can penetrate between the angle irons, with the exception of a short distance above
and below the.ground line, where the space is closed in by a framework of plates;
the extreme lower ends of the angle irons are also connected by distance pieces.
Figure 1 shews a telegraph post constructed according to the above described
invention suitable for a length of about 18 feet divisible into two, Figure 2 shews
a structure of about 21 feet also divisible into two parts, Figures 3 and 4 shew
structures of about 24 feet divisible into two parts, Figures 5, 6 and 7 shew a
structure of the same length divisible into three parts, Figures 8 and 9 are cross
sections of the ends that fit into each other. Figures 10, 11 & 12 are cross sections
shewing the mode of tying together the angle irons forming the posts, Figure 13
shews the mode of fixing the insulators on the posts.
The posts are formed of four angle irons A which at the lower part are secured
together by intervening distance pieces B, while at the upper end they are fixed
together back to back, the post being made by its tapering form to afford practically
uniform resistance throughout its length.
As shewn in Figures 10, 11 and 12 the arrangement of the distance pieces varies
according to the height at which they are applied.
At the height of the section Figure 10, the angle irons are connected simply by
four plates B arranged in pairs above each other and directly rivetted or bolted to
the angle irons A.
The post is sunk in the earth in the ordinary manner, and in order to afford
sufficient resistance to lateral pressure at ground line, four plates B of some depth
are employed to connect the angle irons, being secured thereto by means of short
lengths of angle iron C as shewn at Figure 11.
The lower end of the post is formed by means of four angle irons D rivetted to
each other and to the vertical angle irons A which are strengthened by additional
plates E.
At the upper part of the post the angle irons are secured together, either
directly, so as to form a cross in section, or with the interposition of packing pieces
for keeping them a slight distance apart. At a certain distance from the extreme
upper end two of the angle irons are by preference stopped short, leaving only two
to form the upper end. At the junction of the two parts the lower part is either
made with a solid forged piece F of cross section, or of four angle irons fixed
together, as at Figure 9, which end fits into a corresponding cross shaped space left
between the lower ends of the angle irons of the upper part, which are secured
together by an external ring G as shewn in the cross section at Figure 8.
It will be seen that by this means a strong yet simple union is effected between
the two parts, the connection being easily and rapidly effected.

page_text: The above described construction may also be used for posts formed of a single
length.
The insulators may have their stems fixed to the posts either directly as at
Figures 1, 2 and 3, or they can be fixed to packing pieces secured between the
angle irons as at Figures 4 and 13.
These posts offer the advantages of affording uniform resistance by their tapering
form facility of transport owing to their being made in separate lengths; facility
of connection and fixing in position; facility for effectual maintenance, all parts
being readily accessible; strong foundation owing to the earth penetrating into
the interior thereof, and little hold for the wind owing to their open structure.
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 :
The berein described improved construction of posts or supports for electrical
conducting wires wherein four angle irons are arranged to form a tapering
structure for the lower part of the post, these being secured together at intervals
of their length at the required distances apart by means of distance pieces formed
of plates or of angle irons, while the upper part of the post is formed either of four
angle irons fixed closely together back to back, or of only two angle irons so
arranged.
Doted thio 02nd days of Act 1986