Improvements in Telegraph Posts.
Year: 1891

page_text: Date of Application, 22nd Sept., 1891
Complete Specification Left, 20th June, 1892-Accepted, 23rd July, 1892
PROVISIONAL SPECIFICATION.
Improvements in Telegraph Posts.
I, WILLIAM PITT, of 9 & 10 Gun Street, Spitalfields, in the County of London,
Brassfounder, do hereby declare the nature of this invention to be as follows:-
According to this invention I construct telegraph and other poles or the lower
part of them of three pieces of angle iron arranged in the form of a pyramid.
These angle irons are held in place by castings which consist of three rings of
suitable form for each to encircle one of the angle irons and connected by arms to a
central eye. The ends of the arms next the rings have recesses in them to receive
wedges. The upper and lower castings are of similar construction to the inter-
mediate ones except that in place of rings there are recesses not going completely
through them to receive the ends of the angle irons. The lower casting is provided
with legs to enter the ground. The castings diminish in size from the ground
upwards.
When the post is erected the intermediate castings are threaded and wedged
onto the angle irons in order, and the lower casting is upon the ground with its
legs buried the ends of the angle irons being inserted into its recesses.
The upper and lower castings are connected by a tube or rod passing through
the central holes in the intermediate castings and provided with a nut to draw the
two.castings together.
The top of the upper casting may have a central recess to receive a single tube
or pole to increase the height of the structure.
The bars may be of other section than an angle and four or a larger number of
bars may be employed in place of three.
Dated this 10th day of September 1891.
WILLIAM PITT.
COMPLETE SPECIFICATION.
Improvements in Telegraph Posts.
1, WILLIAM PITT, of 9 & 10 Gun Street, Spitalfields, in the County of London,
Brassfounder 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 :-
According to this invention I construct telegraph and other poles or the lower
part of them of three pieces of angle iron arranged in the form of a pyramid.
These angle irons are held in place by castings or forgings which consist of three
rings. or clips of suitable form for each to encircle and hold one of the angle irons
and connected by arms to a central eye. The ends of the arms next the rings or
clips have recesses in them to receive wedges or the clips themselves are wedge
shaped. The upper, and lower castings or forgings are of similar, construction to
the intermediate ones except that in place of rings there are recesses, not going
completely through them to receive the ends of the angle irons. The lower casting
or base is provided with legs to enter the ground. The castings or forgings, diminish
in size from the ground upwards.
When the post is erected the intermediate castings or forgings are threaded (or
placed and wedged onto the angle irons in order, and the lower casting or base is
upon
the ground with its legs buried the ends of the angle irons being inserted into
its recesses or being otherwise secured to it. The upper and lower castings or

page_text: intermediate castings or forgings and provided with a nut to draw the two
together.
The top of the upper casting or forging may have a central recess to receive ::
single tube or pole to increase the height of the structure.
The bars may be of other section than an angle and four or a larger number of
bars may be employed in place of three.
DESCRIPTION OF THE DRAWINGS.
Figure 1 is a side elevation of a pole constructed according to this invention.
Figures 2 to 7 show details of the construction to a larger scale.
Figure 2 is an underside view of the top casting and Figure 3 is a side elevation
of the same in position.
Figure 4 is a plan of one of the intermediate castings and Figure 5 is a side
elevation showing it in position.
Figure 6 is a plan and Figure 7 side elevation of the bottom casting.
A, A, A are three uprights of angle iron held together by the top and bottom
castings B and C and by the five intermediate castings D. The upper casting Bas
shown in Figures 2 and consists of a tube 6 having outside its lower end three
triangular recesses b' which receive the upper end of the angle irons A. The tube/
carries the tube E which fits into it and forms the upper part of the post.
These
two tubes are pinned together by the pins 6³.
The lower end of the tube E has
fixed to it the cap e having at its centre a screw socket which serves as an attach-
ment for the upper end of the tube or rod F which screws into it. The intermediate
castings D, shown in Figures 4 and 5, are provided with openings d to receive the
angle irons A which when in place are secured by keys d' dropping into holes d
They have also central holes d³ through which pass the tube F. The lower casting C
as shown in Figures 6 and 7, consists of three bent legs and has at its top the hole
through which passes the tube F. G is a nut screwing onto the lower end of the
tube F and serving to draw together the upper and lower castings and so secure
all the parts in place.
Figures 8 to 13 show a modification in which the intermediate castings D with
the rings d are replaced, see Figures 8 and 9 by wrought brackets (also marked D)
and wedge shaped clips d. The ends of the arms have a screw thread upon them
which receives nuts H. and J, the former bearing against the inside of the angle
irons and the latter against the outside of the clips d, this arrangement enables the
straightness of the angle irons A to be ensured. Figures 10 and 11 show a method
of connecting the angle irons A to the base C by means of nuts K screwing on to
bolts L rivetted to them. Figure 11 also shows a method of drawing the upper
and lower castings or forgings together by means of a right and left hand nut M
working on screws on the rod or tube F which is made in two parts, this arrange-
ment has the advantage of having the tightening apparatus above ground so that
it can be used after the pole is erected.
Figures 12 and 13 show another mode of securing the upper end of the rod or
tube F to the upper casting or forging B and also of holding the upper pole E in it.
The rod or tube F has an eye at its upper end through which passes the rod N
whose ends pass through holes in the lower part of the pole E (which is hollow)
and rest in sockets in the top of the wedge shaped tube O which in its turn rests
upon hooked wedges P hanging on the top of the upper casting or forging B.
Having now particularly described and ascertained the nature of my sai!
invention and in what manner the same is to be performed I declare that what
claim is :-
1 T
1. In poles the combination of a number of inclined bars, connections at the top
and bottom to which the ends of the bars are secured, intermediate connections

page_text: holding the bars at the proper distances apart and a rod or tube holding the top and
bottom connections together substantially as described.
2. Poles substantially as described and shown in the drawings.
T
1000
CARPMAEL & Co.,
Agents for the Applicant.