IMPROVEMENTS IN METALLIC POLES FOR TELEGRAPH LINES AND OTHER PURPOSES TO WHICH THE SAME ARE ADAPTED
Year: 1885

page_text: urposes
I WILLIAM SKINNER, Secretary of Latimer Clark, Muirhead & Company
Limited, of 23 Regency Street, Westminster, (communicated by Frederick
Newton Gisborne, of Ottawa, Canada) do hereby declare the nature of my
invention for IMPROVEMENTS IN METALLIC POLES FOR TELEGRAPH LINES AND
OTHER PURPOSES TO WHICH THE SAME ARE ADAPTED, to be as follows:-
The special object sought in my invention is lightness for transport, strength,
stability when planted in the ground, simplicity and durability. Having reference
to the accompanying drawings: Figure 1 represents the pole in situ and fitted
for carrying one wire only. It consists of a wrought iron galvanized tapering
tube (a) of any required diameter and thickness of metal; a galvanized wrought
iron bed plate (b); a galvanized wrought iron grip plate (o); a sleeve (d) of cast
iron, asphaltum or other protecting material at or near the surface of the
surrounding earth; a flat galvanized iron ring (e) punctured with holes for wire
stays, which latter are secured in each instance by a wrought iron ground peg (f)
adapted more particularly for use at curves or angles in a constructed line, or in
soft ground; and finally a wooden top pin (g), provided with a screw thread to
hold an insulator (h) of glass or porcelain.
Figure 2 represents a double angle wrought iron cross arm (J) which may be of
any required dimensions but is here arranged to accommodate six insulators and
adapted to carry the same number of wires, the top pins (g, g, g) being similar to
those ordinarily in use and as described in connection with figure 1.
Figure 3 represents a top view of the stay ring (e) referred to in connection
with figure 1; it is bored to jam at any required distance from the top of the
tapering iron tube (a).
Figure 4 represents a cross section of the wrought iron galvanized cross arm
(J figure 2) showing how the arm is fixed firmly to the pole (a) by a staple (k)
provided with a spur (1) at the back, which, when in place enters a corresponding

page_text: hole in the tubular pole (a) and is there held securely by nuts screwed upon the
ends of the staple (k) which are threaded for that purpose.
Figure 5 shows an end view of the cross arm () as fastened to the pole (a) by
the. staple (k) and bolt nuts; and shows how the top pins (g) are let into holes
bored for the purpose in the upper and lower portions of the double angled iron.
Figure 6 is a face view of the grip plate (c figure 1) which is made of boiler
plate and galvanized, the four corners are turned up at right angles and the centre
is punched with a hole of the right diameter to allow the plate being slipped over
the top of the tube (a) and to jam at the required distance from its base.
Figure 7 is a face view of the bed plate (6 figure 1) which is also made of boiler
plate and galvanized, the four corners are turned up at right angles, and it is so cut
that a strip is turned up in the centre at right angles and punctured so that it can
be keyed on to the base of the tubular pole (a figure 1).
Having described the details embodying my invention I claim;-
1. The use of the grip and bed plates (b) and (c) substantially as set forth and
explained.
2. The anticorrosive sleeve (d).
3. The cross arm (5) of double angle iron whereby the insulator pins are held in
position and the greatest strength with lightness is obtained.
4. The spur staple (k) by which the cross arm (j) is held in place, or a
modification thereof whereby the staple may be punctured to receive a fixed point
or spur attached to the tube.
TT FIL
Cantah- 100K

page_text: COMPLETE SPECIFICATION.
Improvements in Metallic Poles for Telegraph Lines and other
Purposes.
I WILLIAM SKINNER Secretary of Latimer Clark, Muirhead & Co. Limited
of 23 Regency Street, Westminster, in the County of Middlesex (communication
from abroad by Frederic Newton Gisborne of the City of Ottawa in the County
of Carleton Province of Ontario, Canada, Electrician) do hereby declare the nature
of this invention and in what manner the same is to be performed, to be par-
ticularly described and ascertained in and by the following statement :-
Having reference to the accompanying drawings:-
Figure 1 represents the pole in situ and fitted for carrying one wire only-It
consists of a wrought iron galvanized tapering tube (a) of any required diameter
and thickness of metal, a galvanized wrought iron bed plate (b) a galvanized
wrought iron grip plate (c) a sleeve (d) of cast iron, asphaltum, or other protecting
material at or near the surface of the surrounding earth, a flat galvanized iron
ring (e) punctured with holes for wire stays, which latter are secured in each
instance by a wrought iron ground peg (f) adapted more particularly for use at
curves or angles in a constructed line, or in soft ground; and finally a wooden top
pin (g) provided with a screw thread to hold an insulator (h) of glass or porcelain.
Figure 2. represents a double angle wrought iron cross arm (J) which may be of
any required dimensions but is here arranged to accommodate six insulators and
adapted to carry the same number of wires, the top pins (g. g. g) being similar to
those ordinarily in use and as described in connection with figure 1.
Figure 3. represents a top view of the stay ring (e) referred to in connection
with figure 1. It is bored to jam at any required distance from the top of the
tapering iron tube (a).
Figure 4. represents a cross section of the wrought iron galvanized cross arm (J
figure 2) showing how the arm is fixed firmly to the pole (a) by a staple (k)
provided with a spur (1) at the back, which, when in place enters a corresponding
hole in the tubular pole (a) and is there held securely by nuts screwed upon the
ends of the staple (k) which are threaded for that purpose.
Figure 5. shows an end view of the cross arm (J) as fastened to the pole (a) by
the staple (k) and bolt nuts and shows how the top pins (g) are let into holes bored
for the purpose in the upper and lower portions of the double angled iron.
Figure 6. is a face view of the grip plate (c) Figure 1.) which is made of boiler
plate and galvanized, the four corners are turned up at right angles and the centre
is punched with a hole of the right diameter to allow the plate being slipped over
the top of the tube (a) and to jam at the required from its base.
Figure 7. is a face view of the bed plate (b figure 1) which is also made of boiler
plate and galvanized, the four corners are turned up at right angles and it is so cut
that a strip is turned up in the centre at right angles and punctured so that it can
be keyed on to the base of the tubular pole (a figure 1).

page_text: 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
1. The use of the grip and bed plates (b) and (c) substantially as set forth and
explained.
2. The anticorrosive sleeve (d).
3. The cross arm (J) of double angle iron whereby the insulator pins are held in
position and the greatest strength with lightness is obtained.
4. The spur staple (k) by which the cross arm (J) is held in place, or a
modification thereof whereby the staple may be punctured to receive a fixed point
or spur attached to the tube.
5. The special object sought in my invention is lightness for transport, strength,
stability when planted in the ground, simplicity of construction and durability.